Truncate is more equivalent to floor for positive numbers and ceil for negative than round or toFixed.On the MDN page for the Math.trunc there is a polyfill replacement function that would do what OP is expecting.. Math.trunc = Math.trunc || function(x) { return x - x % 1; } In other words, Math.trunc() function cuts off the dot and the digits to the right of it. If we want to round to a set number of decimal places, then we have to handle that ourselves. Something like this: 5.467 -> 5.46 985.943 -> 985.94 toFixed(2) does just about the right thing but it rounds off the value. The Truncate function is used to remove the decimal values from specified expression and return the integer value. Here’s how to write a round function to round to a certain number of decimal places. See below example doesn’t do any rounding, it simply removes all the digits following the decimal. To truncate a positive number to two decimal places, multiply it by 100, truncate it, then divide the result by 100: function truncated(num) { return … 30 Answers. Syntax Truncating Decimal Numbers. Following is the code for rounding and truncating numbers in JavaScript − Example of JavaScript truncate decimal. It’ simply remove the decimals. Either way, the next calculation needs to think the calculated value in that field is 0.46, not 0.459. There are two functions in JavaScript for rounding and truncating numbers: Math.round() and Math.trunc() respectively − Math.round() − = It rounds the decimal number to the nearest integer value. Or I would multiply 0.459 times 100, truncate the decimal, then divide by 100. I don’t need the value rounded off. The only thing I see wrong with toFixed is that it rounds the precision which OP specifically states they don't want to do. In Excel or elsewhere, I would round 0.459 to 2 decimal places. JavaScript's Math object provides a method for rounding to whole numbers. remove - javascript truncate decimal without rounding Truncate number to two decimal places without rounding (17) Suppose I have a value of 15.7784514, I want to display it 15.77 with no rounding. Nor does PHP's answer minimise the distance between the original and rounded floating point numbers, since 362.43 - … ... javascript 140 0 tempid 2020-03-17 12:31:55 +0000 UTC. All the techniques shown so far do some kind of rounding to decimal numbers. The JavaScript Truncate function (trunc(x)) is a Math function. Is there a javascript command I can … Math.trunc() − = It simply removes the fractional part of the decimal number and converts it to a whole number. The built-in Math.round() function doesn’t let you specify a precision for rounding decimal numbers. Convert the number into a string, match the number up to the second decimal place: Note: Math.trunc() isn’t supported on all platforms yet (namely IE), but you could easily use a polyfill in the meantime. I'm not sure why PHP's round gives 362.43. Hope this is possible in javascript. Suppose I have a value of 15.7784514, I want to display it 15.77 with no rounding. That seems intuitively wrong, since 362.42499999999995 is less than 362.425 (in math and in code - 362.42499999999995 < 362.425 is true in both JS and PHP). Use trunc() method in JavaScript to get truncate number. Weird. Truncate number to two decimal places without rounding. Output: 15; The Math.trunc() method is used to return the integer part of a floating-point number by removing the fractional digits. @Dr.GianluigiZaneZanettini Huh. Questions: I am trying to truncate decimal numbers to decimal places. The syntax of the JavaScript Truncate Function is: Where this method returns the integer part of a number. Note: This method will NOT round the number up/down to the nearest integer. Answers: upd: So, after all …