一步步搭建JavaScript框架: Lettuce

最后更新于:2022-04-01 14:08:24

[TOC] ## 概况 ### 背景 从开始打算写一个MV*,到一个简单的demo,花了几天的时间,虽然很多代码都是复制/改造过来的,然而**It Works**(nginx的那句话会让人激动有木有)。现在他叫lettuce,代码[https://github.com/phodal/lettuce](https://github.com/phodal/lettuce),如果有兴趣可以加入我们。 虽然js还不够expert,但是开始了。 ## 步骤 ### Step 1: 注册npm和bower包 一开始我做的3次commits是: ~~~ * e4e6e04 - Add README.md (3 weeks ago) <Fengda HUANG> * 37411d7 - publish bower (3 weeks ago) <Fengda HUANG> * aabf278 - init project (3 weeks ago) <Fengda HUANG> ~~~ 是的一开始什么也没做,除了从`bower`和`npm`上注册了一个叫做`lettuce`的库: ~~~ { "name": "lettuce", "version": "0.0.2", "authors": [ "Fengda HUANG <h@phodal.com>" ], "description": "A Mobile JavaScript Framework", "main": "index.js", "moduleType": [ "amd", "node" ], "keywords": [ "lettuce", "mobile" ], "license": "MIT", "homepage": "http://lettuce.phodal.com", "private": false, "ignore": [ "**/.*", "node_modules", "bower_components", "test", "tests" ] } ~~~ 然后在我们还没有开始写代码的时候版本就已经是`0.0.2`这个速度好快。。总结如下: * 取一个好的名字 * 在npm和bower上挖一个坑给自己 * 开始写README.md 所以我的`README.md`是这样子的 ~~~ #Lettuce > A is Mobile JavaScript Framework Coming soon ~~~ 是的,我们的代码已经`Coming soon`了。 ### Step 2: 生成Javascript项目框架 为了简化这一个痛苦的过程,我们还是用yeoman。 #### 安装Yeoman lib生成器 1.安装yeoman ~~~ npm install -g yo ~~~ 2.安装generator-lib ~~~ npm install -g generator-lib ~~~ 3.创建项目 ~~~ mkdir ~/lettuce && cd $_ yo lib ~~~ 接着我们就迎来了 ~~~ _-----_ | | |--(o)--| .--------------------------. `---------´ | Welcome to Yeoman, | ( _´U`_ ) | ladies and gentlemen! | /___A___\ '__________________________' | ~ | __'.___.'__ ´ ` |° ´ Y ` [?] What do you want to call your lib? Lettuce [?] Describe your lib: A Framework for Romantic [?] What is your GitHub username? phodal [?] What is your full name? Fengda Huang [?] What year for the copyright? 2015 ~~~ 省略上百字,你的目录里就会有 ~~~ . |____.editorconfig |____.gitattributes |____.gitignore |____.jshintrc |____bower.json |____demo | |____assets | | |____main.css | | |____normalize.css | |____index.html |____dist | |____Lettuce.js | |____Lettuce.min.js |____docs | |____MAIN.md |____Gruntfile.js |____index.html |____LICENSE.txt |____package.json |____README.md |____src | |_____intro.js | |_____outro.js | |____main.js |____test | |____all.html | |____all.js | |____lib | | |____qunit.css | | |____qunit.js ~~~ 这么多的文件。 #### Build JavaScript项目 于是我们执行了一下 ~~~ grunt ~~~ 就有了这么多的log: ~~~ Running "concat:dist" (concat) task File "dist/Lettuce.js" created. Running "jshint:files" (jshint) task >> 1 file lint free. Running "qunit:files" (qunit) task Testing test/all.html .OK >> 1 assertions passed (20ms) Running "uglify:dist" (uglify) task File "dist/Lettuce.min.js" created. Done, without errors. ~~~ 看看我们的Lettuce.js里面有什么 ~~~ (function(root, undefined) { "use strict"; /* Lettuce main */ // Base function. var Lettuce = function() { // Add functionality here. return true; }; // Version. Lettuce.VERSION = '0.0.1'; // Export to the root, which is probably `window`. root.Lettuce = Lettuce; }(this)); ~~~ 我们的库写在[立即执行函数表达式](https://www.phodal.com/blog/javascript-immediately-invoked-function-expression)里面。这样便是和jQuery等库一样了。 grunt里的任务包含了: * jshint 代码检查 * contact 合并js到一个文件 * minify js 压缩js * qunit 单元测试 这样我们就可以轻松上路了。 ### Step 3: 寻找所需要的函数 ### Step 4: 整合 ### Step 5: 测试 ### 练习建议
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