js:谁是true,谁是false

## 具有”真正“的值,则认为是true: ```js > if ([]) console.log(123); 123 undefined > if ({}) console.log(123); 123 undefined > if (11) console.log(123); 123 undefined > if (-1...

2015/12/09 23:03
99
1
利用Console来调试JS程序、Console用法总结

摘自:http://blog.163.com/zhangmihuo_2007/blog/static/27011075201452522824347/ Chrome 的开发者工具分为 8 个大模块,每个模块及其主要功能为: Element 标签页: 用于查看和编辑当前页...

2016/05/13 11:42
18
2
JavaScript权威指南(2)——类型、值和变量

能够表示并操作的值的类型称作数据类型,当程序需要将值保存起来以备将来使用时,便将其赋值给一个变量

2016/01/18 17:14
59
1
FAQ How do I write to the console from a plug-in?

Many of the people asking this question are confused by the fact that two Eclipse instances are in use when you are developing plug-ins. One is the development platform you are ...

2014/12/25 23:12
13
0
symfony2常用命令

app/console doctrine:database:create # 创建数据库 app/console doctrine:generate:entity --entity=AcmeDemoBundle:Article #创建Aritle初始化的Entity app/console doctrine:generate:en...

2016/03/15 16:20
28
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九个Console命令,让 JS 调试更简单

一、显示信息的命令 <!DOCTYPE html> <html> <head> <title>常用console命令</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> </head> <body> <script typ...

2016/11/01 14:21
24
0
类、数组03/12

类、数组03/12 1、输入身份证号,截取生日 Console.Write("请输入身份证号:"); string a = Console.ReadLine(); if (a.Length == 18) { string y = a.Substring(6, 4); string m = a.Subst...

2016/05/12 14:08
24
2
javascript调试console命令

常用: console.log(""); console.info('信息'); console.error('错误'); console.warn('警告'); 占位符:console上述的集中度支持printf的占位符格式,支持的占位符有:字符(%s)、整数(%...

2016/08/11 13:51
25
0

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