# How To Split Decimal Number In Javascript

Math is power. Continued fractions have many interesting properties: Euler used them to prove that e is irrational. Enter a number in the first text box. There are two common ways to get data in web apps: data from servers using an API (usually JSON) and data from databases. Fraction (numerator=0, denominator=1) ¶ class fractions. 45 has a precision of 5 and a scale of 2. The script I found from this site is:. I know I have to make a string of the variable and split them, but I need the 07 as 07 and not 7 (because I've got the do some math with it). Formatting numbers for decimals and significant digits in JavaScript Formatting numbers so they confirm to a specific format can be deceivingly tricky. 0-and use it apply struts logic tag in jsp. o — print an integer as an octal number; s — print a string as is; x — print an integer as a hexadecimal number (lower-case) X — print an integer as a hexadecimal number (upper-case) JavaScript vsprintf() vsprintf() is the same as sprintf() except that it accepts an array of arguments, rather than a variable number of arguments:. Meaning that I want only 2 number before the decimal and one number after the decimal. DataTables is a plug-in for the jQuery Javascript library. ASCII & Unicode Character Codes for HTML, C#, VBScript, VB. 3 returning false. Only bitwise operations (not what we're doing here) are limited to 32 bits. NaN (means "Not a Number") d) Converting Integer/Float to String Integer (int) or float value can be converted to string by using the function or method toString(). Find out middle index where sum of both ends are equal. A string is a sequence of one or more characters that may consist of letters, numbers, or symbols. I want to use Javascript to Calculate and Display a Hours and Minutes Value from a Decimal Time Value. Questions and answers for LibreOffice. Here’s the full syntax of these methods:. 1234; System. Write a Python program to find the sum of the following decimal numbers and display the numbers in sorted order. 5 which I need to leave as is. Several JavaScript number format methods are offered with this language that you can use to manipulate numeric values. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. The base argument can be any integer from 2 to 36. There are several ways you can solve the floating point issue in JavaScript. It is used to return a string representing the specified number object. Write a program to reverse a number. All data is stored in a computer as a 0 or 1. how to read line by line and pass each line value to a method. A thought struck me as I was writing a piece of JavaScript code that processed some floating point values. the only solution I've found that works reliably is as you said, a convoluted multiply-then-divide math to get the numbers to act like numbers. 3 this should be invalid i guess in below expression if make it this so this will be good 0. For example, one of the most common tasks is to format a number for currency display- an integer followed by two decimals. DEC2HEX(number, [places]) The DEC2HEX function syntax has the following arguments: Number Required. I need to separate the number into the integer and decimal part. Format number to always show 2 decimal places. Let's do that for the same number 12. Java in General. DecimalFormat class that can format a number into a String following a given pattern. Fraction (numerator=0, denominator=1) ¶ class fractions. The function works by using regular expressions to first split the string into whole number and decimal, before splitting the number by groups of three digits. Create your free Platform account to download our ready-to-use ActivePython or customize Python with any packages you require. To spilt a number into digits and print their sum, try to run. Strings that begin with 0x or -0x are parsed as hexadecimals; strings that begin with 0 or -0 are parsed as octal numbers. See the Pen Get Value of CSS Rotation through JavaScript by Chris Coyier (@chriscoyier) on CodePen. The scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28. We need convert the decimal number to two digit exponential decimal number, for that we are using toExponential(2) method. Format number to always show 2 decimal places. JavaScript data grid that looks and feels like a spreadsheet. Pattern: The pattern "\D+" indicates that we want to use any number of one or more non-digit characters as a delimiter. JavaScript - How To Split On Decimal Code Points Or Equivalent Format - Free JavaScript Tutorials, Help, Tips, Tricks, and More. */ thousandSeparator: ',', /** * @type String * @property decimalSeparator *. For each additional column, repeat steps 4-8. JavaScript Number Format - Add Commas Add separators (e. What I need to do I catch the user while they are typing. If the value cannot be converted to a legal number, NaN is returned. 'small box' right side of 'Page Number'-text 4) Test to click 'Ascending/Descending'-buttons effect. typeof – If variable is a number, it will returns a string named “number”. I want to use a Parameter which has the Decimal time stored as a Number (eg: 12. The decimal produces a smaller segment proportional in length to one of the "whole" segments by that fractional value. 2 would be split into two numbers, i. But i have to find if the user has entered the more than 2 digits after decimal point, how find the length after decimal place. for display on LCD. As I understand the issue, you have a number with a value of 1000 or more. Each of these is a positional number system with a different base: base-10 is our everyday decimal system, base-2 is the binary system our computers operate on, and base-36 is an uncommon but valid alphanumeric system. The String. There are two kinds of functions: user-defined static values (or variables), and built-in functions. I have run into a problem which is that I have a floating point number in a variable lets say for example 1234. If the fractional part of the number is greater than or equal to. If you are unfamiliar with JSON, see this article. The Perl subroutine does the job the JavaScript function does -- work with negative numbers as needed, rounds the number to the nearest hundredths, makes sure there are two digits following the decimal point, and returns the result. How to Convert a Mixed Number to a Decimal. The first is to write a character (or several characters) that will be used for separating the text into chunks. It takes a number and returns correctly formatted string. What I need to do I catch the user while they are typing. I want to reduce the number of digits after the decimal place and show only 2 digits for x coordinate of each point feature. However when I try the number formatting above for current temp I get a blank. Accu Calc is an easy to use, very accurate calculator, which uses Decimal Arithmetic rather than the more typical Binary Arithmetic, which means it retains accuracy even for very large or very. Given a float number, The task is to separate the number into the integer and decimal part using JavaScript. Questions and answers for LibreOffice. To do that I. Split method will return the numbers in string form. The number is rounded and the fractional part is padded if necessary to make it the specified length. Here’s what our current JavaScript equivalent to PHP's number_format looks like. CSS animations and transitions are great! However, while recently toying with an idea, I got really frustrated with the fact that gradients are only animatable in Edge (and IE 10+). Internally, a number is represented in 64-bit format IEEE-754, so there are exactly 64 bits to store a number: 52 of them are used to store the digits, 11 of them store the position of the decimal point (they are zero for integer numbers), and 1 bit is for the sign. For example, type man bc on your linux terminal. The fractions module provides support for rational number arithmetic. Push the "=" button. parseInt() method or custom logic. Keep calling conversion function with n/2 till n > 1, later perform n % 1 to get MSB of converted binary number. AWK # syntax: GAWK -f NARCISSISTIC_DECIMAL_NUMBER. A Fraction instance can be constructed from a pair of integers, from another rational number, or from a string. And that's a good thing, because as anyone who's done even a little programming knows, you can't always assume that something that looks like a number really is a number. commas) to a number Public Domain addCommas and addSeparatorsNF are released to the public domain. It does not have symbols like 10 or 11, so it take letters as symbol from English alphabet. You can write your own prototype method just like below, Number. GPX Splitting Tool. Since you have understood the mathematical conversion of binary to decimal numbers, let us understand how to write a code for it. Symbol for the “thousands separator”. 456 I have tried to set a float value or millis, and dividing by 1. -num-decimal-places The number of decimal places for the output of numbers in the model. Floating point numbers cannot represent all decimals precisely in binary which can lead to unexpected results such as 0. If the value cannot be converted to a legal number, NaN is returned. Most of the time we need to write our customized code to do it. Adding numbers with commas and dollar signs in a single cell. 3125 but I also have numbers such as. 50"; then 12. I have float numbers like 3. Below is a modified example that converts a float to String with two decimal places and comma for every three digits in the whole number component:: /** * A simple Java example that converts a float to String using two decimal places and using comma * as thousand separator via String. split(delimiter) Splits a string into separate substrings which are copied as individual elements into a new array object. 2 Getting the integer portion is easy: n = Math. The result MUST have 2 digits after the decimal point and. If You're using mixed decimal separator,. What I would like to have is the almost opposite of Number. i would really appreciate if anyone can help me on this. Calculadora Hp Cientifica: a melhor seleção de Buscapé, esta sexta, ao melhor preço !Encontre aqui 6 ofertas, marcas, produtos em promoção e estoque pronto para ser enviado de forma rápida e segura em sua casa. CÂU LIKE cho facebook post NHANH CHÓNG - INCREASE FACEBOOK POST LIKE QUICKLY - Duration: 8:52. If string is like "GUJ VAT 12" then it should return 12 If "GUJ VAT 12. var string = numeral(1000). So if the number is 69. 12+ or $265. How to convert decimal to hex in JavaScript? Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”? How can I convert a string to boolean in JavaScript? Set a default parameter value for a JavaScript function ; How can I get query string values in JavaScript?. Python Math: Exercise-37 with Solution. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. For countries with weaker local currency against the dollar (Chile and Colombia), see the proportion of dividends heaped to whole peso and the proportion heaped to one decimal or less. It is not always possible to do this exactly. This is the amount that one currency can be exchanged for, at a specific point of time. Using a Python recipe? Installing ActivePython is the easiest way to run your project. i need to round up a sum value to two decimal places in javascript. 2 would be split into two numbers, i. The only floating-point number which actually has a decimal point is BigDecimal. (3 replies) How would I go about this I know how to do it mathematically, but it would be very cumbersome in Tasker, having to split the %decimal variable in the '. javascript. IP Address / IP Number. TRUNC() is designed to remove the decimal part of any number immediately and without any modification to the non-decimal part. Right now it displays with no commas, and doesn't show the precision (i. com offers free software downloads for Windows, Mac, iOS and Android computers and mobile devices. For example: “Windows Phone 8. For example, rather than being 4 and 14, the numbers are 4. February 22, 2002 - 8:56 am UTC. If you need to pay a worker in a hurry, and would like to use a calculator, here is what you can do to convert the time to a decimal number: Step 1: Divide the minute portion of the time worked into 60 Step 2: Add the decimal number obtained to the hour portion. IP Address / IP Number. See the Pen Get Value of CSS Rotation and Translation through JavaScript by Dieter Raber on CodePen. JavaScript data grid that looks and feels like a spreadsheet. CSS animations and transitions are great! However, while recently toying with an idea, I got really frustrated with the fact that gradients are only animatable in Edge (and IE 10+). There's no need to treat the number as a string when breaking it apart, when a number can be broken apart with a little math. 123456 and need to split it out into variables holding each individual number so I get Char1 = 1, Char2=2 etc etc. The rate used to convert the revenue amount to the opportunity summary currency, if the currency of the revenue line is different from that of the opportunity. If there is only one argument, the number base is detected according to the general JavaScript syntax for numbers. The content on this page is still copyrighted. The format of a DecimalStringSplit region boundary is the ASCII representation of reversed sequential number, or any other uniformly distributed decimal value. Description. MS Access: Format Function (with Numbers) This MSAccess tutorial explains how to use the Access Format function (as it applies to numeric values) with syntax and examples. To display awesome charts we first need some data. The binary representation of a Decimal number consists of a 1-bit sign, a 96-bit integer number, and a scaling factor used to divide the integer number and specify what portion of it is a decimal fraction. The scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28. To round off decimal values using jQuery, we can use the built-in JavaScript methods toFixed() or toPrecision(). Example #1. 456 I have tried to set a float value or millis, and dividing by 1. JavaScript doesn't have many built-in methods to format numbers. For example, with a decimal number such as 9. The script I found from this site is:. 1234; System. commas) to a number Public Domain addCommas and addSeparatorsNF are released to the public domain. If it is not, output a falsey value. Let's divide 518 by-- so we're going to divide it by 0. Converts a decimal number to hexadecimal. NaN (means "Not a Number") d) Converting Integer/Float to String Integer (int) or float value can be converted to string by using the function or method toString(). some particular character. JavaScript - Add Commas To Numbers Published by Chris West on June 23, 2011 At times, I have had to add commas to numbers in order to make them look better in different applications. You just multiply each number by the base of 2 depending on which place the number holds. The first is to write a character (or several characters) that will be used for separating the text into chunks. Your task is to insert an arbitrary number (including zero) of plus signs '+' into S in order to form a valid expression whose value is equal to N. How to split JavaScript Number into individual digits? Javascript Web Development Front End Technology. As it turns out, we can use this base-q expansion form to convert a number from decimal to binary system. This can be specified as a number or a cell reference. In this tutorial we will see six examples: 1. Pattern: The pattern "\D+" indicates that we want to use any number of one or more non-digit characters as a delimiter. Converts the specified string representation of a number to an equivalent decimal number, using the specified culture-specific formatting information. Any ideas?. 50 shows up as 1000. Onclick of the button " Convert " in the HTML code fires the Function() in the block at the same time toExponential() method convert the deimal into exponential form and return the output. JavaScript - For Loop - The 'for' loop is the most compact form of looping. Show both code and browser view!!. Fast, free, and without ads. Sorting arrays in JavaScript is done via the method array. JavaScript has some inaccurate rounding behavior so I've been looking for a reliable solution without success. for display on LCD. If we want to round to a set number of decimal places, then we have to handle that ourselves. Pattern: The pattern "\D+" indicates that we want to use any number of one or more non-digit characters as a delimiter. 42 ), or as a string (ex. 2 would be split into two numbers, i. Meaning that I want only 2 number before the decimal and one number after the decimal. This code was adapted from a snippet I found somewhere awhile back can't claim complete credit. formatMoney():. Internally, it will approximate a decimal fraction according to the rule of floating point arthmetic and handling. digits is an optional argument, and specifies the number of decimal places you’d like to remain after the truncation. Pad a number to two digits with Javascript Posted in Javascript - Last updated Dec. Convert a decimal number to a fraction: Conclusions. All data is stored in a computer as a 0 or 1. I use the Fixer. However, the do-while loop make sure that the loop execute at least once before it fails. i am using this regular expression to validate decimal point it works fine but i want to add one more logic in it if user type 0. If the value cannot be converted to a legal number, NaN is returned. The minimum number of fraction digits to use. You can deal with the usort() function. CÂU LIKE cho facebook post NHANH CHÓNG - INCREASE FACEBOOK POST LIKE QUICKLY - Duration: 8:52. for the decimal? Does any form of javascript recognise the. Split (C# Guide) 01/03/2018; 2 minutes to read +1; In this article. Given a number and the task is to convert the number from decimal to hex. The function works by using regular expressions to first split the string into whole number and decimal, before splitting the number by groups of three digits. If you would like to guarantee a specific number of decimal places in the conversion result, you can use the toFixed method rather than using toString or concatenating with an empty string. JavaScript has the power, to do all functions that are on a normal pocket calculator, and even a few more. Thanks a Lot Hi friend,import. Create your free Platform account to download our ready-to-use ActivePython or customize Python with any packages you require. Note: When the value of ‘D’ is 0 the results have no fractional part and the ‘D’ digits left of the decimal point of the value ‘N’ become 0 when the value of ‘D’ is negative. ” If we were to split like this: string. round() function in JavaScript is used to round a number to its nearest integer. To do that I. TO_CHAR (x, ' 9999999999999999D00 ' ) returns a string representation of the number x, with 16 digits to left of the decimal point, and 2 digits to the right of the decimal point. The toLocaleString() method returns a string with a language-sensitive representation of a number. Questions and answers for LibreOffice. This is the amount that one currency can be exchanged for, at a specific point of time. Net Split() extracts the substrings from the given string that are delimited by the separator parameter, and returns those substrings as elements of an array. split() function is used to split the given string into array of strings by separating it into substrings using a specified separator provided in the. Refer below for a couple rounding methods that JavaScript offers, then next up is some custom code I wrote to do more advanced formatting. parseInt() method or custom logic. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Output : 4. From: "Saved by Windows Internet Explorer 8" Subject: =?gb2312?B?1eO9rbTz0aejusfzysfQws7Fzfijuru206254sHZ?= Date: Tue, 1 Jun 2010 13:01:52 +0100 MIME-Version: 1. Structure of do-while loop int. So if you have a number like 12345678. The returned value. Greenfield Jobbers-Length Twist Drill Bit: Regular Spiral, High Speed Steel, 135° Point Angle, Split, Black Oxide, 7/32 in Drill Dia. How to fractionally split a column while doing a inner join in SQL Server in Sql Server. Depending on the cost and quantity being entered, setting the decimal places to 5 may not prevent every receipt split, however it should cut down on the number of occurrences. 42 ), or as a string (ex. Info: The earlier a digit occurs, the more times it must be multiplied by 10 to correctly parse the number. i want to apply the same functionality on blur of the textfield. It leaves you with the last digit. match a wide range of international phone number Match itnegers Match IPv6 Address rtfValidation Escape one or more asterisks (\*+) LastName-Processing Free trial Match integers Find YouTube Links Match a valid hostname GC TEst markdown fenced code block Grading rows valid packaging slug Match or Validate phone number get theme details pcr. Frequency of dividends and heaping. In this tutorial, we will learn the difference between string. Use the toFixed() method in JavaScript to format a number with two decimals. How would I split part1 into 2-3 digits and put them into num1, num2, and num3? How do I split a number into individual digits? So if you have the number. 2, Oct 23). 666,01 19,33 17. u can even split it by using string. How to convert from binary number to hexadecimal number. Also, bear in mind that if you're looking to convert from decimal to hex for use in CSS as a color data type, you might instead prefer to extract the RGB values from the decimal and use rgb(). For example I have a loop that runs on an array :. 456 (3) 123. In this case, if you use comma in the format string, it will apply to the distinguishing of thousands, not decimal position. If it is not decimal number then just limit. Floating point numbers cannot represent all decimals precisely in binary which can lead to unexpected results such as 0. Import decimals - get ASCII. I want to use Javascript to Calculate and Display a Hours and Minutes Value from a Decimal Time Value. Enter a number in the first text box. Split, except that it splits a string based on a regular expression pattern instead of a fixed character set. So says one of the many ads on the Internet. The delimiter identifies the separator character for splitting the string but it is not included in the substrings. Here are how to convert month name into number in Pythonic way :. [CLOSED] How to format a decimal number I need to display the number in a text box and in a datagrid. In a german "DE" locale the ". Formatting numbers for decimals and significant digits in JavaScript Formatting numbers so they confirm to a specific format can be deceivingly tricky. If the number is 54. 50" is worth nothing at all without telling the locale you are working in. Decimal number is a base 10 number because it ranges from 0 to 9, there are total 10 digits between 0 to 9. Convert Number as string to Integer SharePoint Use this forum to discuss topics about using Visual Studio with SharePoint and other programming for versions of SharePoint prior to 2010. I know I have to make a string of the variable and split them, but I need the 07 as 07 and not 7 (because I've got the do some math with it). TRUNC() is designed to remove the decimal part of any number immediately and without any modification to the non-decimal part. Annoyingly, Javascript version doesn't allow for the number of digits after the decimal, so you could multiple by 100, floor it, and then divide by 100. The split() method is used to split a string into an array of substrings, and returns the new array. Number is a wrapper object that. The NUMBERVALUE function is a built-in function in Excel that is categorized as a String/Text Function. The binary representation of a Decimal number consists of a 1-bit sign, a 96-bit integer number, and a scaling factor used to divide the integer number and specify what portion of it is a decimal fraction. Since the Split function returns different rows for each splitted part, I used Row_Number() function to enumarate rows at first. Previous Next In this example, you will learn about a different kind of JavaScript loop control structure. must not be part of a separator) Test cases:. Multiply: We can multiply the previous number by 10 to satisfy this condition. 6 Here are few methods discussed. Note: If the parameter is a Date object, the Number() function returns the number of milliseconds since midnight January 1, 1970 UTC. javascript. instead of. One of the more unintuitive aspects of JavaScript, particularly for new developers, is the fact that decimal math doesn't always work as you'd expect it to. Online tool to Convert Binary to String and Save and Share. Split number into an integer and decimal. Decimal and Thousands Separators. Using a Python recipe? Installing ActivePython is the easiest way to run your project. 12+ or $265. The split() method is used to split a string into an array of substrings, and returns the new array. JavaScript String Split Function The ability to split up a string into separate chunks has been supported in many programming languages, and it is available in JavaScript as well. Hi I am trying to solve a math problem where I take a number e. I want to split this value based on the decimal point as given below: Input =123. All data is stored in a computer as a 0 or 1. Decimal is the base 10 ten number system and Binary is a base 2 number system (0s and 1s). javascript zeros Truncate number to two decimal places without rounding jquery 2 decimal places (20). There is no reason to use it in your code. I can now include this function into my JavaScript library and do this on the client side. 5 instead of 1,000. Binary is base 2. '9' means pad with spaces, if the number doesn't need that many digits, and '0' means pad with 0's. In the HybridApp. In particular, you should know how they are interleaved. JavaScript Number Format - Decimal Precision Round a number to a certain number of places JavaScript built-in methods toFixed and toPrecision Introduction. The test suite included this test: xit('11010 is decimal 26', function() { expect(new Binary('11010'). See the Pen JavaScript Remove a specific number of characters from a string - string-ex-4 by w3resource (@w3resource) on CodePen. Number() is an in built javascript function which is used to convert data type to number. 5 instead of 1,000. Find out duplicate number between 1 to N numbers. I use the Fixer. For example :. Your task is to write a program or function that checks if a string is a valid phone number. See attached. Stack Exchange Network Stack Exchange network consists of 175 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Their the number of decimal places specified is 3 but still the results return by Calculate Geometry feature contain so many digits after the decimal place. You are given a string S containing only decimal digits ('0' through '9') and a number N. Element Description $ A culture-specific currency symbol. Convert a positive fraction value to a decimal value that can be cast to an integer or float value. Enter a number in the first text box. Greenfield Jobbers-Length Twist Drill Bit: Regular Spiral, High Speed Steel, 135° Point Angle, Split, Black Oxide, 7/32 in Drill Dia. The first code. In JavaScript, there are two ways to check if a variable is a number : isNaN() – Stands for “is Not a Number”, if variable is not a number, it return true, else return false. Obviously, this is not permitted. Write a Python program to find the sum of the following decimal numbers and display the numbers in sorted order. Hello, How to fetch a whole number from a string using javascript ? Ie. TO_CHAR (x, ' 9999999999999999D00 ' ) returns a string representation of the number x, with 16 digits to left of the decimal point, and 2 digits to the right of the decimal point. I need it urgently. The addition operator (+) performs concatenation if either operand is a string, thus "1" + 1 results "11". To truly understand decimal to binary and binary to decimal conversion, you should know how the powers of ten and the powers of two relate. JavaScript numbers are always stored as double precision floating point numbers, following the international IEEE 754 standard. 23 comes before 10. You can also use our online editor to edit and run the code online. Select a mathematical operation. where I need to split it on the commas. Fraction (other_fraction) class fractions. So samples which I want to allow will be 23, 23. Thanks Nicolas, Divya, and Oli for behind-the-scenes help. This Javascript works perfectly, there is just one minor detail. Does anyone no how to split a number into indivdual digitals. ToDecimal(UInt64). 2 would be split into two numbers, i. About JSCompress. '9' means pad with spaces, if the number doesn't need that many digits, and '0' means pad with 0's. True or False: A constructor function has a special format to distinguish it from a normal function. In action:. In the above examples, the resultant string will hold the decimal representation of the original number. @centurianii: Up to 52 bits work well when stored in floats. If a user enters 1. Any input/hint/solution would be highly appreciated! God bless you math guys on stackexchange!. This code was adapted from a snippet I found somewhere awhile back can't claim complete credit. The scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28. The negative sign (-) is allowed. 50” or “EUR 2. 375 in decimal and binary systems the representation is the following: Converting decimal integer to binary. Accu Calc is an easy to use, very accurate calculator, which uses Decimal Arithmetic rather than the more typical Binary Arithmetic, which means it retains accuracy even for very large or very. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: