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Check if Internet Connection Exists with Javascript? [duplicate]
...e some conditionals saying "use the google cached version of JQuery during production, use either that or a local version during development, depending on the internet connection".
...
乘着App的创业浪潮 行业短信也迎来了新生和爆发 - 资讯 - 清泛网 - 专注C/C...
...因阻碍到达率。用户被运营商加入了黑名单、短信被安全软件拦截、短信通道各种问题导致短信延迟验证码等等各种问题更是屡见不鲜。
据DoNew报道，早在2014年滴滴打车提速补贴之时，滴滴一位产品负责人偶然百度搜索了“滴...
Is !important bad for performance?
...le check for "important".
if (aIsImportant) {
if (!HasImportantBit(aPropID))
changed = PR_TRUE;
SetImportantBit(aPropID);
} else {
// ...
Also, comments at source/layout/style/nsCSSDataBlock.h#219
/**
* Transfer the state for |aPropID| (which may be a shorthand)
...
从一个开发的角度看负载均衡和LVS - 更多技术 - 清泛网 - 专注C/C++及内核技术
...均衡的类型
负载均衡可以采用硬件设备，也可以采用软件负载。
商用硬件负载设备成本通常较高（一台几十万上百万很正常），所以在条件允许的情况下我们会采用软负载，软负载解决的两个核心问题是：选谁、转发，其...
为什么我们程序员写不出好代码？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...这个问题，我们需要跟踪bug，我们需要组织工作流和协调软件开发，这些都是无法准确衡量。
4. 爱慕虚荣（Prima donna）的开发者
就开发者而言，最糟糕的莫过于其他开发人员没有按照项目需要进行开发，而是用自己的方式来迭...
How can I connect to MySQL in Python 3 on Windows?
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I also tried using pymysql (on my Win7 x64 machine, Python 3.3), without too much luck. I downloaded the .tar.gz, extract, ran "setup.py install", and everything seemed fine. Until I tried connecting to a database, and got "KeyError [56]". An error which I wa...
How to change color of SVG image using CSS (jQuery SVG image replacement)?
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edited Sep 18 '19 at 7:16
cheesus
10.2k88 ...
实时开发、测试和调试工具 · App Inventor 2 中文网
...以从计算机上的终端启动 adb。 转到包含 AppInventor Extras 软件的目录并运行命令 adb logcat
这将显示整个（大）系统日志。 如果你正在调试，则应该打开日志，再次模拟该错误，然后查看日志末尾出现的内容。
adb 的实际目录取决...
Pull request without forking?
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edited Mar 24 '17 at 15:54
sorin
128k13313...
Proper use of 'yield return'
...d to have the next item before returning.
Among other things, this helps spread the computational cost of complex calculations over a larger time-frame. For example, if the list is hooked up to a GUI and the user never goes to the last page, you never calculate the final items in the list.
Anoth...