Floor Vs Round Javascript

Math floor x parameters x a number.

Floor vs round javascript.

The math floor method is used to round off the number passed as a parameter to its nearest integer in downward direction of rounding i e. The ceil method rounds a number upwards to the nearest integer and returns the result. Towards the lesser value. Because floor is a static method of math you always use it as math floor rather than as a method of a math object you created math is not a constructor.

This method will resemble what you probably learned in school if you were paying more attention than me. When it comes to generating random numbers though math floor has a more even distribution than math round. Math round rounds to the nearest integer if the fraction is 0 5 or greater rounds up math floor rounds down math ceil rounds up. Returns the closed int or long as per the argument double or float.

Returns the largest integer that is less than or equal to the argument. Double float int long. If the passed argument is an integer the value will not be rounded. It is the value which is to be tested for math floor.

So the basic answer is that you use which one gets the result you expect. Returns the smallest integer that is greater than or equal to the argument. The final rounded value depends on the fractional part. While both successfully round off its containing parameter to an integer within the designated range math floor does so more evenly so the resulting integer isn t lopsided towards either end of the number spectrum what is the real difference.

A number representing the largest integer less than or equal to the specified number. This method accepts single parameter asmentioned above and described below. Returns the smallest of the two arguments.