lodash / lodash

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	import getTag from './.internal/getTag.js'
	import isArrayLike from './isArrayLike.js'
	import isString from './isString.js'
	import stringSize from './.internal/stringSize.js'

	/** `Object#toString` result references. */
	const mapTag = '[object Map]'
	const setTag = '[object Set]'

	/**
	* Gets the size of `collection` by returning its length for array-like
	* values or the number of own enumerable string keyed properties for objects.
	*
	* @since 0.1.0
	* @category Collection
	* @param {Array\|Object\|string} collection The collection to inspect.
	* @returns {number} Returns the collection size.
	* @example
	*
	* size([1, 2, 3])
	* // => 3
	*
	* size({ 'a': 1, 'b': 2 })
	* // => 2
	*
	* size('pebbles')
	* // => 7
	*/
	function size(collection) {
	if (collection == null) {
	return 0
	}
	if (isArrayLike(collection)) {
	return isString(collection) ? stringSize(collection) : collection.length
	}
	const tag = getTag(collection)
	if (tag == mapTag \|\| tag == setTag) {
	return collection.size
	}
	return Object.keys(collection).length
	}

	export default size

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