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21 lines
608 B
JavaScript
21 lines
608 B
JavaScript
6 years ago
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var Symbol = require('./_Symbol'),
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isArguments = require('./isArguments'),
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isArray = require('./isArray');
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/** Built-in value references. */
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var spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;
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/**
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* Checks if `value` is a flattenable `arguments` object or array.
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*
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* @private
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
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*/
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function isFlattenable(value) {
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return isArray(value) || isArguments(value) ||
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!!(spreadableSymbol && value && value[spreadableSymbol]);
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}
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module.exports = isFlattenable;
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