Math Floor Javascript Meaning

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.

Math floor javascript meaning. The behavior of this method follows ieee standard 754 section 4. This method returns the largest integer less than or equal to a number. This kind of rounding is sometimes called rounding toward negative infinity. And if it is null the floor function will return zero.

The following example illustrates the math floor double method and contrasts it with the ceiling double method. Javascript uses 64 bit double floating point numbers internally which offer a very high precision. Javascript floor function example. Math ceil math floor.

The floor method rounds a number downwards to the nearest integer and returns the result. 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. If the passed argument is an integer the value will not be rounded. This method accepts single parameter asmentioned above and described below.

Math floor x parameters x a number. Checking a 64 bit float and a 32 bit float for equality may fail even though the. A number representing the largest integer less than or equal to the specified number. This can create confusion.

Programmatically such calculations would involve usage of logarithms trigonometry exponential equations etc. Javascript math floor method. If the number argument is not a number the floor function returns nan. If the argument is a positive or negative number the js floor function will return the floor value.

However sometimes you may be working with 32 bit floating point numbers for example if you are reading values from a float32array. Double values 7 03 7 64 0 12 0 12.