javascript round to 2 decimal

Adjust the decimal format, such as retaining the last two digits of the decimal point, the following articles collect some good implementation methods and share some of them. During the development process, we often encounter the need to adjust the decimal format, such as retaining the last two digits of the decimal po

JavaScript code to retain N digits after the decimal point, js to retain the decimal point In JS, The toFixed function is usually used to retain the N digits after the decimal point. Copy codeThe Code is as follows: The rounding conversion function is as follows: Copy codeThe Code is as follows:Function round (v, e ){V

Use JavaScript to take float type two digits after the decimal point, example 22.127456 to 22.13, how to do? 1. This method is least recommended: function Get () { var s = 22.127456 + ""; var str = s.substring (0,s.indexof (".") + 3); alert (str); } 2. Use regular expressions to get: function Get () { var a = ' 23.456322 '; var anew; var re =

I have studied how to add, subtract, multiply, and divide JavaScript decimal places. I have also done some tests and gained a lot of knowledge, you can share an interesting test with us as follows: 0.1 + 0.2 = 0.3 // falseSuddenly depressed, okay! 0.1 + 0.2 changed to: 0.30000000000000004Another 2.4/0.8 => 2.9999999999999996 cannot be converted into an integer (2.4*100)/(0.8*100)10.22 now I want to subtrac

Javascript restricts that only integer or decimal point numbers can be entered in the text box. js decimal point During form verification, is it true that only numbers can be entered in a certain input box? Only integer numbers or numbers with decimal points can be entered. The following code may help you! By defining

Javascript restricts the amount of textbox decimal places, and textbox decimal places String.prototype.count = function(c){var sum = 0;for(var i = 0;i Use

RunCode Run code Run code Alert (2 .. tostring (2) // if an error occurs at a certain point, the engine cannot determine whether it is a decimal point or ". "operator, or here a" shift-shift confilt "alert (2.0.tostring (2) Alert (2) is generated ). tostring (

This article mainly introduces multiple methods to retain two decimal places in javascript. If the original decimal places of a number are less than two decimal places, the missing digits are automatically set to zero. If you are interested, please refer Method 1: Javascript

Javascript is a magic language that converts any hexadecimal string to decimal, such as binary, octal, and hexadecimal, if the second digit is not written, it is the most commonly used convert to integer decimal. JS is a magic language. Many internal functions can help us convert the number (in) format; Javascript can

the amount to be formatted.* Parameter: type, used to determine whether the formatted amount requires decimal places.* Return: returns the formatted numeric string.*/Function formatMoney (s, type ){If (/[^ 0-9 \.]/. test (s ))Return "0 ";If (s = null | s = "")Return "0 ";S = s. toString (). replace (/^ (\ d *) $/, "$1 .");S = (s + "00"). replace (/(\ d * \. \ d) \ d */, "$1 ");S = s. replace (".",",");Var re =/(\ d) (\ d {3 },)/;While (re. test (s ))

In js, the most common method for getting the decimal point and the two decimal points is the rounding function. I have previously introduced this common function in js, which is useful here, next, let's take a look at some methods to get the float decimal point and sum up the following: we will introduce the implementation of

In javascript, regardless of Single-precision float and double-precision, all decimal variables are regarded as float. Therefore, to obtain the n digits after decimal places, use the toFixed (n) method to obtain Convert js numbers to float and take N decimal places: =================================================

This article mainly introduces a simple example of JavaScript to verify integer plus to retain the decimal point. If you need it, please refer to it. The Code is as follows: Function validateNum (obj ){// Positive integer (cache is used here)Var number = obj. data (validate). number;// Decimal point (cache is used here)Var