【筆記】JavaScript編碼規範- 命名規範

標籤：javascript

避免單字母名稱，讓名稱具有描述性

// badfunction q() {// ...stuff...}// goodfunction query() {// ..stuff..}

當命名物件、函數和執行個體時使用駱駝拼字法

// badvar OBJEcttsssss = {};var this_is_my_object = {};function c() {}var u = new user({name: 'Bob Parr'});// goodvar thisIsMyObject = {};function thisIsMyFunction() {}var user = new User({name: 'Bob Parr'});<strong></strong>

當命名建構函式或類名時，使用駝峰式寫法

// badfunction user(options) {this.name = options.name;}var bad = new user({name: 'nope'});// goodfunction User(options) {this.name = options.name;}var good = new User({name: 'yup'});

命名私人屬性時使用前置底線

// badthis.__firstName__ = 'Panda';this.firstName_ = 'Panda';// goodthis._firstName = 'Panda';

儲存this引用時使用_this

// badfunction() {var self = this;return function() {console.log(self);};}// badfunction() {var that = this;return function() {console.log(that);};}// goodfunction() {var _this = this;return function() {console.log(_this);};}

命名函數時，下面的方式有利於堆疊追蹤

// badvar log = function(msg) {console.log(msg);};// goodvar log = function log(msg) {console.log(msg);};

如果檔案作為一個類被匯出，檔案名稱應該和類名保持一致

// file contentsclass CheckBox {// ...}module.exports = CheckBox;// in some other file// badvar CheckBox = require('./checkBox');// badvar CheckBox = require('./check_box');// goodvar CheckBox = require('./CheckBox');

1:15 And let them be for lights in the firmament of the heaven to give light upon the earth:and it was so.

【筆記】JavaScript編碼規範- 命名規範