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HTML if image is not found
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Seems works in all major browsers. Just swap default and original. So that object renders original image and img default one
– Evgeny
Dec 16 '14 at 10:28
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Check if an array is empty or exists
...y" !== "array"
typeof array == "undefined"; // => true
Case Null
Generally speaking, null is state of lacking a value. For example a variable is null when you missed or failed to retrieve some data.
array = searchData(); // can't find anything
array == null; // => true
Case Not a...
90后创业四年:曾经觉得不公 后来愿赌服输 - 资讯 - 清泛网 - 专注C/C++及内核技术
...自己踩过这个坑，回顾我第一次创业时遇到的合伙人内讧问题，背后其实反映的是创始人的心态——创业很轻松，玩一玩就能创业。我甚至会建议一些人别大学一毕业就创业，因为心态不摆正，一定会失败。创业是神圣的行为，...
Breaking out of a nested loop
...using goto is any worse than the normal use of something like break (after all they're both just unconditional branches to a label, it's just that with break the label is implicit).
– Greg Beech
Nov 28 '08 at 0:07
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Styling HTML email for Gmail
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}
</style>
<xml>
<o:OfficeDocumentSettings>
<o:AllowPNG/>
<o:PixelsPerInch>96</o:PixelsPerInch>
</o:OfficeDocumentSettings>
</xml>
<![endif]-->
This is just a simple example, but, who know, it might come in handy some time.
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Tool for generating railroad diagram used on json.org [closed]
...string and value using string ::= ... and value ::= ... The references are all shown.
Check out some of the example diagrams on the page. They have XML and even EBNF itself.
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Smooth scroll to div id jQuery
...}); Explanation: .basics-content is the inner div of the modal which I actually want to scroll to, with target I provide the id number of the element ...
– Roland
Nov 14 '17 at 10:35
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How to compare two floating point numbers in Bash?
...true or false.
Please, ensure that the bc basic calculator package is installed.
This equally works for floats in scientific format, provided a capital letter E is employed, e.g. num1=3.44E6
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What online brokers offer APIs? [closed]
So I'm getting really sick of E*TRADE and, being a developer, would love to find an online broker that offers an API. It would be great to be able to write my own trading tools, and maybe even modify existing ones.
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How to break nested loops in JavaScript? [duplicate]
...ested loops by moving inner loops to separate functions, it will run marginally slower because of the extra function calls.
– Tim Down
Oct 14 '09 at 10:39
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