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Using tags to turn off caching in all browsers? [duplicate]
...rs are unreliable in meta elements; for one,
any web proxies between the site and the user will completely ignore
them. You should always use a real HTTP header for headers such as
Cache-Control and Pragma.
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What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]
...eir own data and graft it on top of our model, it could usually be done on site by the sales rep. Flexibility also helped when we were designing a new feature, saving us from trying to squeeze new data into a rigid data model.
Having a weird database let us build a lot of our other weird technologi...
android studio 0.4.2: Gradle project sync failed error
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After reporting the problem on the Android Studio feedback site, they found a solution for me. I am now using Gradle 1.10 and Android Studio 0.4.3.
Here is the link to the page with a description of how I fixed mine:
https://code.google.com/p/android/issues/detail?id=65219
Hope thi...
How to compare two revisions in Bitbucket?
...lt;commit1>..<commit2>#commits
Taken from: https://bitbucket.org/site/master/issue/4779/ability-to-diff-between-any-two-commits
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How can I append a string to an existing field in MySQL?
...ull URL, ignoring null fields:
UPDATE test SET image = CONCAT('https://my-site.com/images/',image) WHERE image IS NOT NULL;
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How do I catch a PHP fatal (`E_ERROR`) error?
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Using basic mail: mail("myname@myemail.com", "My Site: FATAL ERROR", "Details: " . $errno . ' ' . $errstr . ' ' . $errfile . ' ' . $errline);
– Eric Muyser
Jun 17 '13 at 7:02
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BLE（三）APP开发步骤 - 创客硬件开发 - 清泛IT社区，为创新赋能！
文章源自：https://www.gandalf.site/2018/11/bleapp.html
Android系统自4.3版本开始，引入了对BLE的支持，详见Bluetooth Low Energy。通过浏览当中的信息，我们可以得知在app开发环节，需要做到如下几件事情：
1. BLE相关权限声明
2. 操...
BLE（六）安全分析脑图 - 创客硬件开发 - 清泛IT社区，为创新赋能！
文章源自：https://www.gandalf.site/2019/02/ble.html
Prevent body scrolling but allow overlay scrolling
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Theory
Looking at current implementation of the pinterest site (it might change in the future), when you open the overlay a noscroll class is applied to the body element and overflow: hidden is set, thus body is no longer scrollable.
The overlay (created on-the-fly or already insid...
Inline functions vs Preprocessor macros
...tions are actual functions whose body is directly injected into their call site. They can only be used where a function call is appropriate.
Now, as far as using macros vs. inline functions in a function-like context, be advised that:
Macros are not type safe, and can be expanded regardless of wh...