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What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]

...ternary operator but not the ternary operator. Major languages (C#, Java, PHP) consider it a conditional operator, and call it the ?: operator. Occasionally (JavaScript) it is called the conditional operator. – Sheepy May 30 '14 at 8:02 ...
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How to check whether a string is Base64 encoded or not

... Try like this for PHP5 //where $json is some data that can be base64 encoded $json=some_data; //this will check whether data is base64 encoded or not if (base64_decode($json, true) == true) { echo "base64 encoded"; } e...
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What is the benefit of zerofill in MySQL?

...rkByers, Practically speaking though, wouldn't most client-libraries (e.g. PHP) simply strip the zeros off before they hand it over to the application code? If so, then it really seems somewhat pointless. A bad design in the early days of MySQL. – Pacerier May...
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Convert MySql DateTime stamp into JavaScript's Date format

... #MySQL select date_format(my_date_column,'%Y-%m-%dT%T') from my_table; #PHP $php_date_str = substr($mysql_date_str,0,10).'T'.substr($mysql_date_str,11,8); //JavaScript js_date_str = mysql_date_str.substr(0,10)+'T'+mysql_date_str.substr(11,8); ...
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Redirect from an HTML page

...SEO people: <link rel="canonical" href="http://www.example.com/product.php?item=swedish-fish"/> share | improve this answer | follow | ...
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实战做项目如何选择开源许可协议(一)-了解协议 - 开源 & Github - 清泛网...

...所有国家。假如你在美国,许可是从印度授权的,也没有问题。 3)授权免费 无版税, 前期、后期均无任何费用。 4)授权无排他性 任何人都可以获得授权 5)授权不可撤消 一旦获得授权,没有任何人可以取消。比如,你基...
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How to show loading spinner in jQuery?

...img src="images/spinner.gif" alt="Wait" />'); $('#message').load('index.php?pg=ajaxFlashcard', null, function() { $("#myDiv").html(''); }); This will make sure your animation starts at the same frame on subsequent requests (if that matters). Note that old versions of IE might have difficultie...
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Homebrew作者解不出面试题,被Google拒绝 - 创意 - 清泛网 - 专注C/C++及内核技术

...其作者在进入Google的面试中,因解不出一个二叉树翻转的问题,直接被Google拒绝。 Max Howell在Twitter上推文大意如下: Google:虽然我们90%的工程师都在用你写的Homebrew,但这也并没有什么卵用,你连二叉树翻转都写不出,直接...
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最新编程语言Alda:用文本编辑器就能谱曲 - 创意 - 清泛网 - 专注C/C++及内核技术

...多种乐器等。就其现阶段而言,完成基本的乐谱是完全没问题的,不过变调、重复等一些标记还需要后续的功能加入。 Yarwood 撰写了 Alda 使用的具体使用说明,有兴趣的可以点击这里查看,他另外也表示未来将扩展 Alda 的应用...
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小偷与程序员 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...:你可以走了。 我感到很诧异。 我:为什么问这样的问题? 民警:深夜还在街上走,幸苦又寒酸的样子,不是小偷就是程序员。程序员 小偷