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Last change
on this file since bdd6491 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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| 1 | /**
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| 2 | * Checks if `value` is `undefined`.
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| 3 | *
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| 4 | * @static
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| 5 | * @since 0.1.0
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| 6 | * @memberOf _
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| 7 | * @category Lang
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| 8 | * @param {*} value The value to check.
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| 9 | * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
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| 10 | * @example
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| 11 | *
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| 12 | * _.isUndefined(void 0);
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| 13 | * // => true
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| 14 | *
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| 15 | * _.isUndefined(null);
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| 16 | * // => false
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| 17 | */
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| 18 | function isUndefined(value) {
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| 19 | return value === undefined;
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| 20 | }
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| 21 |
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| 22 | module.exports = isUndefined;
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