1 var isInteger = require('./isInteger');
3 /** Used as references for various `Number` constants. */
4 var MAX_SAFE_INTEGER = 9007199254740991;
7 * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
8 * double precision number which isn't the result of a rounded unsafe integer.
10 * **Note:** This method is based on [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
15 * @param {*} value The value to check.
16 * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
22 * _.isSafeInteger(Number.MIN_VALUE);
25 * _.isSafeInteger(Infinity);
28 * _.isSafeInteger('3');
31 function isSafeInteger(value) {
32 return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
35 module.exports = isSafeInteger;