Last change
on this file since 6fe77af was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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[6a3a178] | 1 | /** Used for built-in method references. */
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| 2 | var objectProto = Object.prototype;
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| 3 |
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| 4 | /** Used to check objects for own properties. */
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| 5 | var hasOwnProperty = objectProto.hasOwnProperty;
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| 6 |
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| 7 | /**
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| 8 | * Initializes an array clone.
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| 9 | *
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| 10 | * @private
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| 11 | * @param {Array} array The array to clone.
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| 12 | * @returns {Array} Returns the initialized clone.
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| 13 | */
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| 14 | function initCloneArray(array) {
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| 15 | var length = array.length,
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| 16 | result = new array.constructor(length);
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| 17 |
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| 18 | // Add properties assigned by `RegExp#exec`.
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| 19 | if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
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| 20 | result.index = array.index;
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| 21 | result.input = array.input;
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| 22 | }
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| 23 | return result;
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| 24 | }
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| 25 |
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| 26 | module.exports = initCloneArray;
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