| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | var toNumber = require('./toNumber'); |
| 2 | |
| 3 | /** Used as references for various `Number` constants. */ |
| 4 | var INFINITY = 1 / 0, |
| 5 | MAX_INTEGER = 1.7976931348623157e+308; |
| 6 | |
| 7 | /** |
| 8 | * Converts `value` to a finite number. |
| 9 | * |
| 10 | * @static |
| 11 | * @memberOf _ |
| 12 | * @since 4.12.0 |
| 13 | * @category Lang |
| 14 | * @param {*} value The value to convert. |
| 15 | * @returns {number} Returns the converted number. |
| 16 | * @example |
| 17 | * |
| 18 | * _.toFinite(3.2); |
| 19 | * // => 3.2 |
| 20 | * |
| 21 | * _.toFinite(Number.MIN_VALUE); |
| 22 | * // => 5e-324 |
| 23 | * |
| 24 | * _.toFinite(Infinity); |
| 25 | * // => 1.7976931348623157e+308 |
| 26 | * |
| 27 | * _.toFinite('3.2'); |
| 28 | * // => 3.2 |
| 29 | */ |
| 30 | function toFinite(value) { |
| 31 | if (!value) { |
| 32 | return value === 0 ? value : 0; |
| 33 | } |
| 34 | value = toNumber(value); |
| 35 | if (value === INFINITY || value === -INFINITY) { |
| 36 | var sign = (value < 0 ? -1 : 1); |
| 37 | return sign * MAX_INTEGER; |
| 38 | } |
| 39 | return value === value ? value : 0; |
| 40 | } |
| 41 | |
| 42 | module.exports = toFinite; |