Last change
on this file since 188ee53 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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[6a3a178] | 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 various `Number` constants. */
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| 5 | var MAX_SAFE_INTEGER = 9007199254740991;
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| 6 |
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| 7 | /**
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| 8 | * Converts `value` to a safe integer. A safe integer can be compared and
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| 9 | * represented correctly.
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| 10 | *
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| 11 | * @static
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| 12 | * @memberOf _
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| 13 | * @since 4.0.0
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| 14 | * @category Lang
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| 15 | * @param {*} value The value to convert.
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| 16 | * @returns {number} Returns the converted integer.
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| 17 | * @example
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| 18 | *
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| 19 | * _.toSafeInteger(3.2);
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| 20 | * // => 3
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| 21 | *
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| 22 | * _.toSafeInteger(Number.MIN_VALUE);
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| 23 | * // => 0
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| 24 | *
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| 25 | * _.toSafeInteger(Infinity);
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| 26 | * // => 9007199254740991
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| 27 | *
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| 28 | * _.toSafeInteger('3.2');
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| 29 | * // => 3
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| 30 | */
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| 31 | function toSafeInteger(value) {
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| 32 | return value
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| 33 | ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
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| 34 | : (value === 0 ? value : 0);
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| 35 | }
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| 36 |
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| 37 | module.exports = toSafeInteger;
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