Marc Mintel
5397309103
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33 lines
939 B
Plaintext
33 lines
939 B
Plaintext
'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true,
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});
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exports.isIterableObject = isIterableObject;
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/**
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* Returns true if the provided object is an Object (i.e. not a string literal)
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* and implements the Iterator protocol.
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*
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* This may be used in place of [Array.isArray()][isArray] to determine if
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* an object should be iterated-over e.g. Array, Map, Set, Int8Array,
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* TypedArray, etc. but excludes string literals.
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*
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* @example
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* ```ts
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* isIterableObject([ 1, 2, 3 ]) // true
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* isIterableObject(new Map()) // true
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* isIterableObject('ABC') // false
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* isIterableObject({ key: 'value' }) // false
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* isIterableObject({ length: 1, 0: 'Alpha' }) // false
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* ```
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*/
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function isIterableObject(maybeIterable) {
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return (
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typeof maybeIterable === 'object' &&
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typeof (maybeIterable === null || maybeIterable === void 0
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? void 0
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: maybeIterable[Symbol.iterator]) === 'function'
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);
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}
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