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Checking if a field contains a string
I'm looking for an operator, which allows me to check, if the value of a field contains a certain string.
10 Answers
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Difference between single quotes and double quotes in Javascript [duplicate]
..."It's alright"; // single quote inside double quotes var answer = "He is called 'Johnny'"; // single quotes inside double quotes var answer = 'He is called "Johnny"'; // double quotes inside single quotes
– broadband
Mar 5 '15 at 11:26
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Get a list of resources from classpath directory
I am looking for a way to get a list of all resource names from a given classpath directory, something like a method List<String> getResourceNames (String directoryName) .
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Take a screenshot of a webpage with JavaScript?
...Width, wb.Height));
wb.Dispose();
return bitmap;
}
And then via PHP you can do:
exec("CreateScreenShot.exe -url http://.... -save C:/shots domain_page.png");
Then you have the screenshot in the server side.
shar...
How can I send an HTTP POST request to a server from Excel using VBA?
...und parameters if you do not use the Sub's return value: VBA Syntax do not allow parentheses around Sub's parameters (they are needed for Functions, though), so these parentheses are actually arithmetic parentheses used to clarify operator precedence. Apart from being misleading and unclear, this ca...
Stop Chrome Caching My JS Files
I will make a change to my JS files but it won't really change in the browser, I have to rename the files every time so that it reloads it. Is there some sort of .htaccess command I can add or something to make it stop caching?
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Nginx与Lua - 更多技术 - 清泛网 - 专注C/C++及内核技术
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shell> ldd /path/to/nginx
libluajit-<VERSION>.so => not found
此类问题通常使用ldconfig命令就能解决：
shell> echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local_lib.conf
shell> ldconfig
再试着启动Nginx看看，应该就OK了。
应用
我们先用一个简单的程序...
“hello, world” 起源及其他 - 创意 - 清泛网 - 专注C/C++及内核技术
...章（我的hello world）、环境搭建成功后的第一个测试…
问题的提出
相传古时候有个退休的程序员，在家闲来无事，决定修习书法之道。第一日，备好笔墨纸砚，便挥毫写下一行大字：“hello, world”。
学过编程语言的人都笑了...
c/c++ volatile和mutable关键字 - C/C++ - 清泛网 - 专注C/C++及内核技术
...automatic variables)
3) 多线程应用中被几个任务共享的变量
问题：
1)一个参数既可以是const还可以是volatile吗？解释为什么。
2); 一个指针可以是volatile 吗？解释为什么。
3); 下面的函数有什么错误：
int square(volatile int *ptr)
{
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WhatsApp比微信好在哪里？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...免费”，而“增值服务”收费，但是这种商业模式带来的问题是，一个越来越庞大臃肿的应用，一个越来越脱离其核心功能的应用。
总结
可见，WhatsApp成功的一大因素就是“专注”，坚持其工具属性，因为是付费应用，因此就...