Javascript Math Floor Vs Round

Math round vs math ceil vs math floor javascript performance comparison.

Javascript math floor vs round. Wouldn t math round be a better choice for the youhit variable since it would round to 0 if 5 and up to 1 if 5 causing a random pattern of 1 s and 0 s. 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. When you feed math round a 500000 value it will round to the nearest even integer if i recall correctly. Math ceil and math round methods differ in a way that the former round off a number to its nearest integer in upward direction of rounding towards the greater value whereas the latter round off a number to its nearest integer in downward direction of rounding towards lower value.

Towards the lesser value. This method accepts single parameter asmentioned above and described below. The floor method rounds a number downwards to the nearest integer and returns the result. If you want to generate a random number between 0 and 2 take the following examples.

A number representing the largest integer less than or equal to the specified number. In essence it is floor number number modulus 1. 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 just rounds down to the nearest integerer while math round searches for the nearest integer.

Test case created by on 2011 12 8. Math floor always rounds down to the nearest integer while math round will round up or down depending on what side of 5 the number falls on. If the passed argument is an integer the value will not be rounded. Floor will always round down.

Math floor x parameters x a number. This tutorial teaches java math class with examples. It is the value which is to be tested for math floor. Java math class provides useful methods for performing the math s operations like exponential logarithm roots and trigonometric equations too.

For accurate results please disable firebug before running the tests. When it comes to generating random numbers though math floor has a more even distribution than math round.