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MySql Table Insert if not exist otherwise update
...safe. (Bug #11765650, Bug #58637) Bug 58637 description bugs.mysql.com/bug.php?id=58637
– broadband
Sep 2 '14 at 13:28
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CORS - What is the motivation behind introducing preflight requests?
...entify the user.
Before CORS, the browser's Same Origin Policy would have blocked it from sending this request. But since the purpose of CORS is to make just this kind of cross-origin communication possible, that's no longer appropriate.
The browser could simply send the DELETE and let the server ...
What's the best manner of implementing a social activity stream? [closed]
...ok at getstream.io There are clients available for Node, Python, Rails and PHP.
In addition have a look at this high scalability post were we explain some of the design decisions involved:
http://highscalability.com/blog/2013/10/28/design-decisions-for-scaling-your-high-traffic-feeds.html
This tut...
How do I make JavaScript beep?
...r wav files into Data URI format:
https://dopiaza.org/tools/datauri/index.php
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What does the git index contain EXACTLY?
...this by adding an (optional) index extension that is a
table of offsets to blocks of cache entries in the index file.
To make this work for V4 indexes, when writing the cache entries, it periodically"resets" the prefix-compression by encoding the current entry as if the path name for the previous en...
Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?
... description in his Care and Feeding of Singletons blog post.
Not all GCD blocks are run asynchronously.
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What is the _snowman param in Ruby on Rails 3 forms for?
...characters). As a result, it's extremely common for Ruby applications (and PHP applications, etc. etc.) to exhibit this user-facing bug, and therefore extremely common for users to try to change the encoding as a palliative measure.
All that said, when I wrote this patch, I didn't realize that the ...
Having a private branch of a public repo on GitHub?
I have a public PHP project in a GitHub repo, which contains just one branch (master).
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App Inventor 2 FTP 客户端拓展：FTP协议连接、上传、下载、创建、修改目录...
...g:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } 文档反馈 切换 目录 在线 客服 ...
HTML table headers always visible at top of window when viewing a large table
...n be added to a Drupal theme using drupal_add_js() in the theme's template.php as follows:
drupal_add_js('misc/tableheader.js', 'core');
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