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Direktori : /proc/self/root/var/www/html/node_modules/lodash/ |
Current File : //proc/self/root/var/www/html/node_modules/lodash/size.js |
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;