EN
JavaScript - Math.floor() method example
14 points
The Math.floor() function returns an integer value that is smaller than or equal to the argument - the result of round down operation.
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console.log( Math.floor( 5 ) ); // 52
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console.log( Math.floor( 2.49 ) ); // 24
console.log( Math.floor( 2.50 ) ); // 25
console.log( Math.floor( 2.51 ) ); // 26
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console.log( Math.floor( -2.49 ) ); // -38
console.log( Math.floor( -2.50 ) ); // -39
console.log( Math.floor( -2.51 ) ); // -310
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console.log( Math.floor( 0.999 ) ); // 012
console.log( Math.floor( 1.001 ) ); // 113
console.log( Math.floor( -1.001 ) ); // -2| Syntax | Math.floor(number) |
| Parameters | number - integer or float number value (primitive value). |
| Result |
Rounded down If If If |
| Description | floor is a static method that takes only one parameter and returns a rounded-down value. |
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function floorPrecised(number, precision) {2
var power = Math.pow(10, precision);3
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return Math.floor(number * power) / power;5
}6
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// Example:8
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console.log( floorPrecised( 5 , 0 ) ); // 510
console.log( floorPrecised( 5. , 0 ) ); // 511
console.log( floorPrecised( .5, 0 ) ); // 012
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console.log( floorPrecised( 1.1234, 0 ) ); // 114
console.log( floorPrecised( 1.1234, 1 ) ); // 1.115
console.log( floorPrecised( 1.1235, 2 ) ); // 1.1216
console.log( floorPrecised( 1.1235, 3 ) ); // 1.12317
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console.log( floorPrecised( -1.1234, 0 ) ); // -219
console.log( floorPrecised( -1.1234, 1 ) ); // -1.220
console.log( floorPrecised( -1.1234, 2 ) ); // -1.1321
console.log( floorPrecised( -1.1234, 3 ) ); // -1.12422
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console.log( floorPrecised( 1234, -1 ) ); // 123024
console.log( floorPrecised( 1234, -2 ) ); // 120025
console.log( floorPrecised( 1234, -3 ) ); // 100026
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console.log( floorPrecised( 5_000.000_001, 0 ) ); // 500028
console.log( floorPrecised( 5_000.000_001, 6 ) ); // 5000.00000129
console.log( floorPrecised( 5_000.000_001, -3 ) ); // 5000