Math.floor

floor — Rounds down to the closest whole number.

Description

Math.floor(number number)

Parameters

Examples

Example #1 – floor example

Run
console.log(Math.floor(1));     // 1
console.log(Math.floor(1.0));   // 1
console.log(Math.floor(1.2));   // 1
console.log(Math.floor(1.49));  // 1
console.log(Math.floor(1.5));   // 1
console.log(Math.floor(1.8));   // 1
console.log(Math.floor(2));     // 2

See also

• ceil

• round

External references

• Mozilla: Math.floor method