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how to rotate a bitmap 90 degrees
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edited Jun 18 '18 at 16:51
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How to move out of auto-completed brackets in IntelliJ IDEA (without using the arrow keys)?
I recently switched from Eclipse to IntelliJ IDEA, and found myself wondering how to move the cursor out of a pair of auto-completed brackets.
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Replace \n with actual new line in Sublime Text
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Turn on Regex Search and Replace (icon most to the left in search and replace bar or shortcut Alt + R)
Find What: \\n
Replace with: \n
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Context switches much slower in new linux kernels
We are looking to upgrade the OS on our servers from Ubuntu 10.04 LTS to Ubuntu 12.04 LTS. Unfortunately, it seems that the latency to run a thread that has become runnable has significantly increased from the 2.6 kernel to the 3.2 kernel. In fact the latency numbers we are getting are hard to belie...
What is the “hasClass” function with plain JavaScript?
How do you do jQuery’s hasClass with plain ol’ JavaScript? For example,
14 Answers
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Using braces with dynamic variable names in PHP
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Wrap them in {}:
${"file" . $i} = file($filelist[$i]);
Working Example
Using ${} is a way to create dynamic variables, simple example:
${'a' . 'b'} = 'hello there';
echo $ab; // hello there
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File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希 ·...
... 搜索 File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希
File Hash 扩展
下载链接
功能概述
扩展特性
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Get array of object's keys
I would like to get the keys of a JavaScript object as an array, either in jQuery or pure JavaScript.
7 Answers
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Get JSON object from URL
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$json = file_get_contents('url_here');
$obj = json_decode($json);
echo $obj->access_token;
For this to work, file_get_contents requires that allow_url_fopen is enabled. This can be done at runtime by including:
ini_set("allow_u...
Android and setting alpha for (image) view alpha
...eView.setAlpha(int) documentation. The alternative is to use View.setAlpha(float) whose XML counterpart is android:alpha. It takes a range of 0.0 to 1.0 instead of 0 to 255. Use it e.g. like
<ImageView android:alpha="0.4">
However, the latter in available only since API level 11.
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