Apr 23, 2019 · I am trying to parse two values from a datagrid. The fields are numeric, and when they have a comma (ex. 554,20), I can't get the numbers after the comma. I've tried parseInt and parseFloat. How ca...

In JavaScript, when converting from a float to a string, how can I get just 2 digits after the decimal point? For example, 0.34 instead of 0.3445434.

Only if value is passed in as a string can we fully determine if it uses a decimal point or not. Because 1.0 (as a number) results in 1 though "1.0" (as a string) results in "1.0" exactly the same. And from there we can find if it contains a decimal point, .. So we need to pass the argument value as a string.

Feb 8, 2015 · There is a built-in function for this. var a = 2; var b = a.toFixed(1); This rounds the number to one decimal place, and displays it with that one decimal place, even if it's zero.

Sep 22, 2009 · to print out your number as a float with two decimal places. You may also use Number.toFixed () for display purposes, if you'd rather not include more files merely for floating point rounding to a given precision.

Jul 2, 2010 · And you can always use parseFloat (float_num.toFixed (2)) to convert the string back to float while keeping only two decimals.

We first turn the provided float value into a string before splitting it into an array of char using the String.split('') instruction. Then we will call the recursive() function with the last index of the array of chars as argument, to iterate through that array from last index to the precision index while rounding the value.

Numbers in JavaScript do not and cannot have thousands separators, nor specifiable precision--in other words, 1.00 is exactly equivalent to 1. Therefore, you cannot convert a string to some non-existent form of integer with separators and precision. If you're so inclined, check out the section of the ES spec about numeric literals.

Jun 8, 2012 · I have a String e.g: "4.874915326E7". What is the best way to convert it to a javascript number format? (int or float)? if I try parseInt(), the E at the end is ignored.

Nov 5, 2015 · Is there a straightforward way to parse a string to either integer or float if I don't know if the variable is integer-number-like or decimal-number-like? a = '2'; // => parse to integer