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JavaScript JavaScript Basics (Retired) Working With Numbers The Math Object

Houssein Abil
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Houssein Abil
Full Stack JavaScript Techdegree Student 1,047 Points
Posted by Houssein Abil
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Houssein Abil
Full Stack JavaScript Techdegree Student 1,047 Points

Difference between Math.floor and Math.round

Hi all,

I'm a little bit confused with the Math Object Math.floor and Math.round, can you tell me what is the difference between them and in practice, in which case it's recommended to use them?

2 Answers

Jacob Mishkin
Jacob Mishkin
23,118 Points
Jacob Mishkin
Jacob Mishkin
23,118 Points

think of it in a different light. Floor will always go down to the last integer.The float 3.8 will be dropped down to 3. Round is just that 3.8 will round up to 4. 3.3 will round down to 3.

Stan Zapalikov
Stan Zapalikov
1,915 Points
Stan Zapalikov
Stan Zapalikov
1,915 Points

I'd like to add on to Jacob's answer. Math.floor(); chops off the decimal part when Math.round(); rounds it.