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> 简介:[ JavaScript30] ( https://javascript30.com ) 是 [ Wes Bos] ( https://github.com/wesbos ) 推出的一个 30 天挑战。项目免费提供了 30 个视频教程、30 个挑战的起始文档和 30 个挑战解决方案源代码。目的是帮助人们用纯 JavaScript 来写东西,不借助框架和库,也不使用编译器和引用。现在你看到的是这系列指南的第 9 篇。完整指南在 [ GitHub] ( https://github.com/soyaine/JavaScript30 ) ,喜欢请 Star 哦♪(^∇^* )
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> 创建时间:2017-01-06
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- 最后更新:2017-01-06
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+ 最后更新:2017-09-24
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## 实现效果
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``` js
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console .log (" 输出一个字符串 %s " , " log" );
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console .log (" 输出一个整数是 %d " , 1.23 ); // 1
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- console .log (" 输出一个小数是 %d " , 1.23 ); // 1.23
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+ console .log (" 输出一个小数是 %f " , 1.23 ); // 1.23
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console .log (" %c不同样式的输出效果" , " color: #00fdff; font-size: 2em;" );
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```
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@@ -119,4 +119,7 @@ fetch("https://api.github.com/users/soyaine")
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如果 timeEnd 中的名称如果和上面不一样,得到的数据是系统当前时间换算后的毫秒值。
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- ** ~ \( ≧▽≦)/~ 调试技巧这部分就结束啦,拿起宝剑去开疆扩土吧~ **
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+ ** ~ \( ≧▽≦)/~ 调试技巧这部分就结束啦,拿起宝剑去开疆扩土吧~ **
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+
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+ ## ChangeLog
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+ - 2017-09-24 fix typo [ issue #29 ] ( https://github.com/soyaine/JavaScript30/issues/29 )
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// Interpolated
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// 字符替换
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console . log ( "我的名字叫做 %s " , "log" ) ;
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- console . log ( "我的年龄是 %d " , 1.23 ) ;
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+ console . log ( "我的年龄是 %f " , 1.23 ) ;
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// console.log("我的名字叫做 %o ", {1.23: 12});
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+
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// Styled
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// 设定输出的样式
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console . log ( "偷偷告诉你,我会变身 %c ~\(≧▽≦)/~巴拉拉~~" , "color: #00fdff; font-size: 2em;" ) ;
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const p = document . querySelector ( 'p' ) ;
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console . log ( p ) ;
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console . dir ( p ) ;
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+
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// Testing
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console . assert ( 1 === 1 , "(这句发布时删除)" ) ;
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console . assert ( 1 === 0 , "看看看,失策了吧" ) ;
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console . assert ( p . innerHTML . match ( "她" ) , "我这儿才没有她这个人" ) ;
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+
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// clearing
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// console.clear();
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-
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+
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// Grouping together
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dogs . forEach ( dog => {
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- console . group ( ) ;
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+ console . group ( ) ;
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// console.groupCollapsed(); // 收起列表
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console . log ( `${ dog . name } ` ) ;
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console . log ( `${ dog . age } ` ) ;
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console . log ( `${ dog . name } 有 ${ dog . age } 岁了` ) ;
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console . groupEnd ( ) ;
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} ) ;
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-
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+
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//
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console . table ( dogs ) ;
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console . table ( dogs , [ "age" ] ) ;
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-
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- // counting
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+
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+ // counting
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console . count ( "(读来过反)羊只" ) ;
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console . count ( "(读来过反)羊只" ) ;
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console . count ( "(读来过反)鱼条" ) ;
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</ script >
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</ body >
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- </ html >
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+ </ html >
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