| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | var baseClamp = require('./_baseClamp'), |
| 2 | toInteger = require('./toInteger'); |
| 3 | |
| 4 | /** Used as references for various `Number` constants. */ |
| 5 | var MAX_SAFE_INTEGER = 9007199254740991; |
| 6 | |
| 7 | /** |
| 8 | * Converts `value` to a safe integer. A safe integer can be compared and |
| 9 | * represented correctly. |
| 10 | * |
| 11 | * @static |
| 12 | * @memberOf _ |
| 13 | * @since 4.0.0 |
| 14 | * @category Lang |
| 15 | * @param {*} value The value to convert. |
| 16 | * @returns {number} Returns the converted integer. |
| 17 | * @example |
| 18 | * |
| 19 | * _.toSafeInteger(3.2); |
| 20 | * // => 3 |
| 21 | * |
| 22 | * _.toSafeInteger(Number.MIN_VALUE); |
| 23 | * // => 0 |
| 24 | * |
| 25 | * _.toSafeInteger(Infinity); |
| 26 | * // => 9007199254740991 |
| 27 | * |
| 28 | * _.toSafeInteger('3.2'); |
| 29 | * // => 3 |
| 30 | */ |
| 31 | function toSafeInteger(value) { |
| 32 | return value |
| 33 | ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) |
| 34 | : (value === 0 ? value : 0); |
| 35 | } |
| 36 | |
| 37 | module.exports = toSafeInteger; |