javascript function formatToTwoDecimalPlaces(num) { return num.toFixed(2); // 返回字符串 // 或者,如果你需要数字(尽管有精度问题): // return Math.round(num * 100) / 100; } let num = 123.456789; let formattedNum = formatToTwoDecimalPlaces(num); // "123.46" console.log(formattedNum);...
This is a short guide on how to round a number to 2 decimal places using JavaScript. In the example below, I also will provide a JavaScript alternative to PHP’snumber_formatfunction. Take a look at the custom JavaScript function below: /** * Custom JavaScript function that rounds a numbe...
Round a number to a certain number of places JavaScript built-in methods toFixed and toPrecision Introduction JavaScript has built-in methods to format a number to a certain precision. They are toFixed and toPrecision, and are part of the Number object. Any browser that supportsECMAScript versio...
Using the Custom Function to Round a Number To 2 Decimal Places in JavaScriptfunction roundToTwo(num) { return +(Math.round(num + 'e+2') + 'e-2'); } console.log(roundToTwo(2.005)); This custom function takes care of all the corner cases, and rounding of decimals like 1.005 is...
JavaScript Money Format(用prototype对Number进行扩展) //Extend the default Number object with a formatMoney() method://usage: someVar.formatMoney(decimalPlaces, symbol, thousandsSeparator, decimalSeparator)//defaults: (2, "$", ",", ".")Number.prototype.formatMoney =function(places, symbol, thous...
In this JavaScript tutorial, you will find information about the formatting number to display with two decimals. Also, read about solving rounding issues.
162.29 // toFixed(2) 162.29 // toPrecision(5) Do they show up correctly as 162.30 in your browser? Most JavaScript implementations will display it as 162.29 Here is basically what happens when rounding 162.295 to two decimal places num = 162.295 ...
You can learn more about the related topics by checking out the following tutorials: Format a number to 2 Decimal places in JavaScript Convert a number to Hexadecimal in JavaScript I wrote a book in which I share everything I know about how to become a better, more efficient programmer. You...
It uses the built-in JavaScript function for testing if a number is an integer. If it is not an integer, then the number if formatted with 2 decimal places. The correct way to format numbers is with the "util.printf" function. Thom Parker - Software Develope...
There are multiple ways to round a double or float value into 2 decimal places in Java. You can use one of the following methods: The DecimalFormat class The BigDecimal class The String.format() method The Math.round() method Note: If you are formatting a currency, always use the ...