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24 lines
613 B
JavaScript
24 lines
613 B
JavaScript
/** Used to check objects for own properties. */
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const hasOwnProperty = Object.prototype.hasOwnProperty
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/**
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* Initializes an array clone.
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*
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* @private
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* @param {Array} array The array to clone.
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* @returns {Array} Returns the initialized clone.
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*/
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function initCloneArray(array) {
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const length = array.length
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const result = new array.constructor(length)
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// Add properties assigned by `RegExp#exec`.
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if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
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result.index = array.index
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result.input = array.input
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}
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return result
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}
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export default initCloneArray
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