| 1 | var baseClamp = require('./_baseClamp'),
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| 2 | toInteger = require('./toInteger');
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| 3 |
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| 4 | /** Used as references for the maximum length and index of an array. */
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| 5 | var MAX_ARRAY_LENGTH = 4294967295;
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| 6 |
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| 7 | /**
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| 8 | * Converts `value` to an integer suitable for use as the length of an
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| 9 | * array-like object.
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| 10 | *
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| 11 | * **Note:** This method is based on
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| 12 | * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
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| 13 | *
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| 14 | * @static
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| 15 | * @memberOf _
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| 16 | * @since 4.0.0
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| 17 | * @category Lang
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| 18 | * @param {*} value The value to convert.
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| 19 | * @returns {number} Returns the converted integer.
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| 20 | * @example
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| 21 | *
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| 22 | * _.toLength(3.2);
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| 23 | * // => 3
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| 24 | *
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| 25 | * _.toLength(Number.MIN_VALUE);
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| 26 | * // => 0
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| 27 | *
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| 28 | * _.toLength(Infinity);
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| 29 | * // => 4294967295
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| 30 | *
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| 31 | * _.toLength('3.2');
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| 32 | * // => 3
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| 33 | */
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| 34 | function toLength(value) {
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| 35 | return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
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| 36 | }
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| 37 |
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| 38 | module.exports = toLength;
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