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Pure JavaScript Send POST Data Without a Form
...to use navigator.sendBeacon():
const data = JSON.stringify({
example_1: 123,
example_2: 'Hello, world!',
});
navigator.sendBeacon('example.php', data);
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Mozilla PDF.js：PDF在线预览 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...等待的过程中，IE进程消耗掉了CPU资源的50-60%。点击翻页操作，或者改变IE的窗口大小会触发viewer对pdf进行重新解析和渲染。有时把IE前端的某个挡住他的程序窗口（比如一个txt）移开也会导致重新渲染，但是并不是每次都会触发...
Check if a method exists
...j respondsToSelector:@selector(methodName:withEtc:)]) {
[obj methodName:123 withEtc:456];
}
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C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...);
printf("&i = %x\n", &pt->i); //因为操作符优先级，我没有写成&(pt->i)
printf("&c = %x\n", &pt->c);
printf("&p = %x\n", &pt->p);
return 0;
}复制代码
看到...
How can I ask the Selenium-WebDriver to wait for few seconds in Java?
...
123
Well, there are two types of wait: explicit and implicit wait.
The idea of explicit wait is
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Array versus List: When to use which?
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123
Really just answering to add a link which I'm surprised hasn't been mentioned yet: Eric's Lipp...
How do you install ssh-copy-id on a Mac?
...to compiling dependencies errors at ssl.
cat ~/.ssh/id_rsa.pub | ssh user@123.45.56.78 "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"
credit goes to this site
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Format decimal for percentage values?
...complete example:
using System.Globalization;
...
decimal myValue = -0.123m;
NumberFormatInfo percentageFormat = new NumberFormatInfo { PercentPositivePattern = 1, PercentNegativePattern = 1 };
string formattedValue = myValue.ToString("P2", percentageFormat); // "-12.30%" (in en-us)
...
How to dynamically create CSS class in JavaScript and apply?
...ate dynamic css stylesheets.
$.injectCSS({
"#test": {
height: 123
}
});
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...log
/etc/rsyslog.conf
/etc/rsyslog.d
/etc/sysconfig/rsyslog
...
如果系统里有Syslog的话，那么在启动Rsyslog之前，别忘了先关闭它：
shell> service syslog stop
shell> service rsyslog start
如果运行Rsyslog时出现问题，那么可以通过激活调试模式来查...