Math.floor() JavaScript Function

Math.floor() is a function in JavaScript that returns the largest integer that is not greater than the number. The number can be a decimal number, and Math.floor() will truncate (or cut off) the decimal part of the number, returning only the integer part.

For example, if you enter the number 5.6 into a JavaScript console, Math.floor() javascript function will return 5. If you enter the number -5.6 into a JavaScript console, Math.floor() will return -6.

How to use Math.floor() javascript function

This function is useful when you need to round a number to the nearest whole number. For example, let’s say you have a number of 5.5 and you want to round it down to the nearest whole number. You would use the Math.floor() function like this:


This would return the number 5.

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