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Creating and throwing new exception
...nd followed by a string.
throw "Error trying to do a task"
When used inside a catch, you can provide additional information about what triggered the error
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Transparent background with three.js
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@tfrascaroli Did you see one?
– WestLangley
Jan 12 '17 at 14:08
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Explanation of …
...ple TODO application ( Backbone TODO Example ) they had their templates inside a <script type = "text/template"></script> , which contained code that looks like something out of PHP but with JavaScript tags.
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Bootstrap modal appearing under background
... ways to do this:
Easiest way is to just move the modal div so it is outside any elements with special positioning. One good place might be just before the closing body tag </body>.
Alternatively, you can remove position: CSS properties from the modal and its ancestors until the problem goe...
Freeing up a TCP/IP port?
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As the others have said, you'll have to kill all processes that are listening on that port. The easiest way to do that would be to use the fuser(1) command. For example, to see all of the processes listening for http requests on port 80 (run as...
Increment a value in Postgres
...l';
If you want to make sure the current value is indeed 203 (and not accidently increase it again) you can also add another condition:
UPDATE totals
SET total = total + 1
WHERE name = 'bill'
AND total = 203;
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Get the device width in javascript
Is there a way to get the users device width, as opposed to viewport width, using javascript?
12 Answers
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Are single quotes allowed in HTML?
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This is similar to When did single quotes in HTML become so popular?. Single quotes around attributes in HTML are and always have been permitted by the specification. I don't think any browsers wouldn't understand them.
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SensorUtil 传感器工具扩展：在后台和屏幕关闭时保持传感器工作 · App Inv...
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工作原理
前台服务
Android 限制后台应用的活动以节省电池。要在后台持续运行，应用必须启动前台服务。前台服务会在状态栏显示通知，告知用户应用正在后台运行。
传感器生命周期 ...
What is the purpose of the reader monad?
... g = \x -> g (f x) x
These are even simpler. What's more, ask is just id and local is just function composition with the order of the functions switched!
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