database-mysql
615d671da1
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17 lines
721 B
JavaScript
17 lines
721 B
JavaScript
/** Returns whether the payload is an iterable (regular or async) */
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export function isIterable(payload) {
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// oxlint-disable-next-line no-typeof-undefined
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if (typeof Symbol === 'undefined' || typeof Symbol.iterator === 'undefined') {
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return false;
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}
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// oxlint-disable-next-line no-null
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if (payload === null || payload === undefined)
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return false;
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// Strings are iterable, even though they're primitives.
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if (typeof payload === 'string')
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return true;
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// For objects, arrays and functions, check if Symbol.iterator is a function.
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return ((typeof payload === 'object' || typeof payload === 'function') &&
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typeof payload[Symbol.iterator] === 'function');
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}
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