| 1 | var Symbol = require('./_Symbol'),
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| 2 | isArguments = require('./isArguments'),
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| 3 | isArray = require('./isArray');
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| 4 |
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| 5 | /** Built-in value references. */
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| 6 | var spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;
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| 7 |
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| 8 | /**
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| 9 | * Checks if `value` is a flattenable `arguments` object or array.
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| 10 | *
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| 11 | * @private
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| 12 | * @param {*} value The value to check.
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| 13 | * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
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| 14 | */
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| 15 | function isFlattenable(value) {
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| 16 | return isArray(value) || isArguments(value) ||
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| 17 | !!(spreadableSymbol && value && value[spreadableSymbol]);
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| 18 | }
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| 19 |
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| 20 | module.exports = isFlattenable;
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