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How does one use rescue in Ruby without the begin and end block
I know of the standard technique of having a begin rescue end
5 Answers
5
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How do you get a timestamp in JavaScript?
How can I get a timestamp in JavaScript?
39 Answers
39
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Why is the default value of the string type null instead of an empty string?
It's quite annoying to test all my strings for null before I can safely apply methods like ToUpper() , StartWith() etc...
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How do I simulate a hover with a touch in touch enabled browsers?
With some HTML like this:
14 Answers
14
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LR性能指标解释 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Runner[/url]）：用户执行情况、场景状态、事务响应时间、TPS等。
7.测试机资源：CPU、Memory、网络、磁盘空间。
监控工具
性能测试通常采用下列工具进行监控：
1.Profiler。一个记录log的类，阿里巴巴集团自主开发，嵌入到应用...
Check if an image is loaded (no errors) with jQuery
I'm using JavaScript with the jQuery library to manipulate image thumbnails contained in a unordered list. When the image is loaded it does one thing, when an error occurs it does something else. I'm using jQuery load() and error() methods as events. After these events I check the image DOM ele...
Which is faster : if (bool) or if(int)?
The above topic made me do some experiments with bool and int in if condition. So just out of curiosity I wrote this program:
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Responsive website zoomed out to full width on mobile
I am testing out Bootstrap responsiveness navbar and I have a demo website. When I resize the browser on a desktop, it all works fine including the nav bar which become collapsible menu with a small icon on the top which I can click to see more menu buttons.
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What is the difference between call and apply?
What is the difference between using call and apply to invoke a function?
24 Answers
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Reliable way for a Bash script to get the full path to itself [duplicate]
I have a Bash script that needs to know its full path. I'm trying to find a broadly-compatible way of doing that without ending up with relative or funky-looking paths. I only need to support Bash, not sh, csh, etc.
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