관리-도구

편집 파일: isString.js

var isObjectLike = require('../internal/isObjectLike'); /** `Object#toString` result references. */ var stringTag = '[object String]'; /** Used for native method references. */ var objectProto = Object.prototype; /** * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) * of values. */ var objToString = objectProto.toString; /** * Checks if `value` is classified as a `String` primitive or object. * * @static * @memberOf _ * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. * @example * * _.isString('abc'); * // => true * * _.isString(1); * // => false */ function isString(value) { return typeof value == 'string' || (isObjectLike(value) && objToString.call(value) == stringTag); } module.exports = isString;