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AngularJS : Where to use promises?

.... This is a standard pattern for handling asynchronous operations in JavaScript and other languages. One big problem with this pattern arises when you need to perform a sequence of asynchronous operations, where each successive operation depends on the result of the previous operation. That's wh...
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simulate background-size:cover on or

... over for a while, but I came across a great solution that doesn't use any script, and can achieve a perfect cover simulation on video with 5 lines of CSS (9 if you count selectors and brackets). This has 0 edge-cases in which it doesn't work perfectly, short of CSS3-compatibility. You can see an e...
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Request format is unrecognized for URL unexpectedly ending in

...sing(Boolean fromTimerEvent) In order to fix this error I had to add the ScriptHandlerFactory lines to web.config: <system.webServer> <handlers> <remove name="ScriptHandlerFactory" /> <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="inte...
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Minimal web server using netcat

... From man for nc, -p description: It is an error to use this option in conjunction with the -l option – sbeliakov Nov 24 '16 at 14:59 ...
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How to calculate time elapsed in bash script?

I print the start and end time using date +"%T" , which results in something like: 20 Answers ...
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转:postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术

... Q: [root@mail postfix]# /usr/sbin/postfix start postfix/postfix-script: warning: not owned by postfix: /var/spool/postfix/hold postsuper: fatal: scan_dir_push: open directory hold: Permission denied postfix/postfix-script: fatal: Postfix integrity check failed! 呵呵权限问题...
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How can I write text on a HTML5 canvas element?

...kup: <canvas id="myCanvas" width="300" height="150"></canvas> Script (with few different options): <script> var canvas = document.getElementById('myCanvas'); var ctx = canvas.getContext('2d'); ctx.font = 'italic 18px Arial'; ctx.textAlign = 'center'; ctx. textB...
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How to update a single library with Composer?

...the autoload-dev rules. --no-autoloader: Skips autoloader generation. --no-scripts: Skips execution of scripts defined in composer.json. --no-plugins: Disables plugins. --no-progress: Removes the progress display that can mess with some terminals or scripts which don't handle backspace characters. -...
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How to write a bash script that takes optional input arguments?

I want my script to be able to take an optional input, 8 Answers 8 ...
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How do I use extern to share variables between source files?

... made to work. Clearly, it would not be hard to create a header generator script to give you the standardized template for a variable defining and declaring header file. NB These are toy programs with just barely enough code to make them marginally interesting. There is repetition within the exam...