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var baseKeys = require('./_baseKeys'),    getTag = require('./_getTag'),    isArrayLike = require('./isArrayLike'),    isString = require('./isString'),    stringSize = require('./_stringSize');
/** `Object#toString` result references. */var mapTag = '[object Map]',    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. * * @static * @memberOf _ * @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;  }  var tag = getTag(collection);  if (tag == mapTag || tag == setTag) {    return collection.size;  }  return baseKeys(collection).length;}
module.exports = size;