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1
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var Symbol = require('./_Symbol'),
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2
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isArguments = require('./isArguments'),
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3
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isArray = require('./isArray');
|
|
4
|
|
|
5
|
/** Built-in value references. */
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|
6
|
var spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;
|
|
7
|
|
|
8
|
/**
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|
9
|
* Checks if `value` is a flattenable `arguments` object or array.
|
|
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`.
|
|
14
|
*/
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|
15
|
function isFlattenable(value) {
|
|
16
|
return isArray(value) || isArguments(value) ||
|
|
17
|
!!(spreadableSymbol && value && value[spreadableSymbol]);
|
|
18
|
}
|
|
19
|
|
|
20
|
module.exports = isFlattenable;
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