![]() Method 5: Round a number to two decimal places using the custom functions in JavaScript: toPrecision() method to cut off the floating-point rounding errors raised during the intermediate calculations in single rounds of floating-point numbers. Return Math.round(m) / 100 * Math.sign(num) Var m = Number( (Math.abs(num) * 1000).toPrecision(12) ) The parameter defines the value of the number of significant digits a user wants to apply to the formatted number. If the input number they will format requires more digits than the original number, the interpreter will add decimals and nulls to create the specified precision. toPrecision() method in Javascript to format a number to a precise length or precision. toFixed() method, users can also use the. toPrecision() method in JavaScript: What is. Method 4: Round a number to two decimal places using the. toFixed() method converts the number into two decimal place floating-point numbers. ![]() The parseFloat() function first treats the input as a number, and the. We have given a string with a number value as an input. ![]() toFixed() method to round a number with two decimal places. In the above code snippet, we have used both the parseFloat() and the. It converts the string input into an integer or a floating-point number (based on the string data type).Ĭode Snippet: demo = parseFloat("4.349948").toFixed(2) If the string input does not have a numeral value or the string's first character is not a numeral value, it returns NaN, i.e., not a number. Similar to the above JavaScript functions, the parseFloat() is a function that accepts a string input and converts it into a floating-point number. Method 3: Round a number to two decimal places using the parseFloat() with toFixed() method in JavaScript: What is parseFloat()? toFixed(), it is still not the most reasonable solution and will also not round 5.005 accurately.īrowsers that supports the. If users insert a number like 5.005 as input, it will return 5.000 instead of 5.01.Īlthough the Math.round() improves over. If a number rounds of 2.2, it will yield a result of 2.20. There are many other better methods than this. toFixed() method does not generate exact outputs in some cases. toFixed() method on a number input and passed the number of digits to the right place of the decimal as an argument. In the above code sample, we have used the. This parameter indicates the number of digits that will appear in the right place of the decimal.Ĭode Snippet: var numb = 349875948759348.30374213 It formats the number input with a particular number of digits to the right place of the decimal. Also, users can use this function to round a floating-point number to the nearest integer having a maximum of two decimal places. Users can use this method to format a number input applying fixed-point notation. Method 2: Round a number to two decimal places using the toFixed() method in JavaScript: What is. Lastly, we divide the number by 100 to get a maximum of two decimal places.īrowsers that support the Math.round() function are as follows: We then multiply that number with 100 before rounding to fetch only the two digits after their decimal place. Then, we will use the Number.EPSILON to provide the number's precise rounding. In the above code snippet, we have taken a long floating-point number as input and added a small number compared to that input number. Var rounded = Math.round((numb + Number.EPSILON) * 100) / 100 The function rounds the number to its nearest integer with two decimal places.Ĭode Snippet: var numb= 8374848959.4863318274862938 In JavaScript, Math.round() is a function that round the number input as a parameter to its nearest integer. Method 1: Round a number to two decimal places using the Math.round() function in JavaScript: What is Math.round()? ![]() This article will depict all these five methods of rounding a decimal number to two decimal places. toFixed() method, Math.round() and parseFloat() functions and double rounding (. Users can round a number to a maximum of 2 decimal places using five different methods in JavaScript. ![]()
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