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Camera 扩展：相机拍照和录像，程序控制拍照、自动拍照实现，而无需点击系...
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How to 'minify' Javascript code
...Each)
use the function arguments as placeholder (in some cases)
remove unneccessary "{}","()",";",spaces,newlines
Use the minifier
Now if a minifier can compress the code your doing it wrong.
No minifier can compress properly a bad code.
DIY
function myFunction(a,b,c){
for(b=[],c={};a--;)b[a]...
How to find duplicates in 2 columns not 1
...icates.
You can read more about eh ALTER IGNORE here: http://mediakey.dk/~cc/mysql-remove-duplicate-entries/
Update: I was informed by @Inquisitive that this may fail in versions of MySql> 5.5 :
It fails On MySQL > 5.5 and on InnoDB table, and in Percona because of
their InnoDB fast in...
Android 4.3 Bluetooth Low Energy unstable
...ced that after I connect a device for the first time I am rarely able to successfully connect to / communicate with that device or any other device again.
...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注C/C++及内核技术
...言，我更喜欢能够快速上手的东西。
对于日志管理，老版本的Linux缺省使用Syslog，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anythin...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注C/C++及内核技术
...言，我更喜欢能够快速上手的东西。
对于日志管理，老版本的Linux缺省使用Syslog，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anythin...
Go build: “Cannot find package” (even though GOPATH is set)
...
Although the accepted answer is still correct about needing to match directories with package names, you really need to migrate to using Go modules instead of using GOPATH. New users who encounter this problem may be confused about the men...
SVG Positioning
...rect x="10" y="10" height="100" width="100" style="stroke:#009900;fill: #00cc00"/>
</svg>
</svg>
The two rectangles are identical (apart from the colors), but the parent svg elements have different x values.
See http://tutorials.jenkov.com/svg/svg-element.html.
...
Can someone copyright a SQL query? [closed]
..., thn there's the problem of the code written automatically released under CC-Wiki, unless whever waives that...
– RCIX
Dec 4 '09 at 7:17
7
...
Changing CSS Values with Javascript
...hing like this:
var cssRuleCode = document.all ? 'rules' : 'cssRules'; //account for IE and FF
var rule = document.styleSheets[styleIndex][cssRuleCode][ruleIndex];
var selector = rule.selectorText; //maybe '#tId'
var value = rule.value; //both selectorText and value are settable.
Let ...