I have the following dummy test script:    function test() {   var x = 0.1 * 0.2;   document.write(x); } test();     This will print the result 0.020000000000000004 while it should just print 0.02 (if you use your calculator). As far as I understoo...

A colleague of mine stumbled upon a method to floor float numbers using a bitwise or:  var a = 13.6 | 0; //a == 13   We were talking about it and wondering a few things.   How does it work? Our theory was that using such an operator casts the numbe...

This question already has answers here:...

This question already has answers here:...

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....

I would like to format my numbers to always display 2 decimal places, rounding where applicable.  Examples:  number     display ------     ------- 1          1.00 1.341      1.34 1.345      1.35   I have been using this:   parseFloat(num).toFixed(2...

I am trying to truncate decimal numbers to decimal places. 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. I don't need the value rounded off. Hope this...

In JavaScript, everyone knows the famous calculation: 0.1 + 0.2 = 0.30000000000000004. But why does JavaScript print this value instead of printing the more accurate and precise 0.300000000000000044408920985006?...

I wanted to display a number to 2 decimal places.  I thought I could use toPrecision(2) in JavaScript .  However, if the number is 0.05, I get 0.0500. I'd rather it stay the same.  See it on JSbin.  What is the best way to do this?  I can think...

While working on a project, I came across a JS-script created by a former employee that basically creates a report in the form of  Name : Value Name2 : Value2   etc.  The peoblem is that the values can sometimes be floats (with different precision)...