19 lines
444 B
TypeScript
19 lines
444 B
TypeScript
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const objectProto = Object.prototype
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const hasOwnProperty = objectProto.hasOwnProperty
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export function initCloneArray(array: any) {
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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 (
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length &&
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typeof array[0] == 'string' &&
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hasOwnProperty.call(array, 'index')
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) {
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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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