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Loading cross-domain endpoint with AJAX

... API URL. (Supports https: see github repository) If you want to automatically enable cross-domain requests when needed, use the following snippet: $.ajaxPrefilter( function (options) { if (options.crossDomain && jQuery.support.cors) { var http = (window.location.protocol === 'http:'...
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Toggle Checkboxes on/off

... You can write: $(document).ready(function() { $("#select-all-teammembers").click(function() { var checkBoxes = $("input[name=recipients\\[\\]]"); checkBoxes.prop("checked", !checkBoxes.prop("checked")); }); }); Before jQuery 1.6, when we only ...
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Should MySQL have its timezone set to UTC?

...of the servers you work with then you can have everything set to UTC internally and never worry about timezones and DST. Here are some notes I collected of how to work with timezones as a form of cheatsheet for myself and others which might influence what timezone the person will choose for his/he...
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Save bitmap to location

...my image in canvas it is very small. any reason? – AZ_ Mar 18 '11 at 13:24 3 @Aizaz This will not...
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How can I list all commits that changed a specific file?

Is there a way to list all commits that changed a specific file? 16 Answers 16 ...
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Create an array with random values

... var random_array = new Array(40).fill().map((a, i) => a = i).sort(() => Math.random() - 0.5); I think this does the same as above – Jamie337nichols Sep 16 '19 at 18:47 ...
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Computed / calculated / virtual / derived columns in PostgreSQL

...(Not in Postgres 13, yet) . Related: Attribute notation for function call gives error Until then, you can emulate VIRTUAL generated columns with a function using attribute notation (tbl.col) that looks and works much like a virtual generated column. That's a bit of a syntax oddity which exi...
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术

...   为了强化这个原则,ØMQ严格地分离拓扑的建立(zmq_bind,zmq_connect)和真实消息的传递(zmq_send,zmq_rev)。 前者同底层的传输地址协同工作,比如IP地址,而后者仅仅使用处理器(文件描述符)去定位具体的拓扑: /* Topology esta...
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Escape string for use in Javascript regex [duplicate]

...mp;'); // $& means the whole matched string } Example escapeRegExp("All of these should be escaped: \ ^ $ * + ? . ( ) | { } [ ]"); >>> "All of these should be escaped: \\ \^ \$ \* \+ \? \. \( \) \| \{ \} \[ \] " (NOTE: the above is not the original answer; it was edited to show th...
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What are my environment variables? [closed]

... I am not sure if thats what you want, but try printenv This will show you all your environment variables. About where they are stored Linux: where are environment variables stored? How to set Shell Environment Variables http://www.codecoffee.com/tipsforlinux/articles/030.html Happy reading :-)...