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30 lines
729 B
JavaScript
30 lines
729 B
JavaScript
var isLength = require('../internal/isLength'),
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keys = require('../object/keys');
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/**
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* Gets the size of `collection` by returning `collection.length` for
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* array-like values or the number of own enumerable properties for objects.
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*
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* @static
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* @memberOf _
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* @category Collection
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* @param {Array|Object|string} collection The collection to inspect.
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* @returns {number} Returns the size of `collection`.
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* @example
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*
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* _.size([1, 2]);
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* // => 2
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*
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* _.size({ 'one': 1, 'two': 2, 'three': 3 });
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* // => 3
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*
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* _.size('pebbles');
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* // => 7
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*/
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function size(collection) {
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var length = collection ? collection.length : 0;
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return isLength(length) ? length : keys(collection).length;
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}
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module.exports = size;
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