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Regex that accepts only numbers (0-9) and NO characters [duplicate]
...e the * to +. To accept exactly one digit, just remove the *.
UPDATE: You mixed up the arguments to IsMatch. The pattern should be the second argument, not the first:
if (!System.Text.RegularExpressions.Regex.IsMatch(textbox.Text, "^[0-9]*$"))
CAUTION: In JavaScript, \d is equivalent to [0-9], b...
【解决】C、C++混合编译link失败问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
【解决】C、C++混合编译link失败问题c_cpp_mixed_compileC、C++混合编译时，C头文件不加 extern "C"，函数按照C++编译会改变函数名称，导致link时报undefined reference to `xxx` 的 错误。加 extern "C" 解决，但是直接加的话 C、C++混合编译时，C...
[es6] import, export, default cheatsheet - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
//------ main1.js ------
import myFunc from 'myFunc';
myFunc();
3. Mixed named & default exports
//------ underscore.js ------
export default function (obj) {
...
};
export function each(obj, iterator, context) {
...
}
export { each as forEach };
//------ main.js ------
...
Two forward slashes in a url/src/href attribute [duplicate]
...nding the proper protocol.
tl;dr: With even the slightest possibility of a mixed http/https environment, just use the double slash/protocol relative URLs for loading your resources — assuming that the host serving the content is both http and https enabled.
...
Wildcards in a Windows hosts file
...face settings:
Start
Control Panel
Network and Internet
Network Connections
Local Area Connection Properties
TCP/IPv4
Set "Use the following DNS server address":
Preferred DNS Server: 127.0.0.1
If you then combine this answer with jeremyasnyder's answer (using VirtualDocumentRoot) you can ...
What does 'COLLATE SQL_Latin1_General_CP1_CI_AS' do?
...rmance problem that the SQL Server collations have: Impact on Indexes When Mixing VARCHAR and NVARCHAR Types.
Latin1_General is the culture / locale.
For NCHAR, NVARCHAR, and NTEXT data this determines the linguistic rules used for sorting and comparison.
For CHAR, VARCHAR, and TEXT data (columns,...
How do I download a binary file over HTTP?
...
The simplest way is the platform-specific solution:
#!/usr/bin/env ruby
`wget http://somedomain.net/flv/sample/sample.flv`
Probably you are searching for:
require 'net/http'
# Must be somedomain.net instead of somedomain.net/, otherwise, it will throw exception.
Net:...
Iterate over the lines of a string
... print list(f())
Running this as the main script confirms the three functions are equivalent. With timeit (and a * 100 for foo to get substantial strings for more precise measurement):
$ python -mtimeit -s'import asp' 'list(asp.f3())'
1000 loops, best of 3: 370 usec per loop
$ python -mtimeit -s'...
Delete directories recursively in Java
...
You should check out Apache's commons-io. It has a FileUtils class that will do what you want.
FileUtils.deleteDirectory(new File("directory"));
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impro...
Weak and strong property setter attributes in Objective-C
...
Here is information what I know about variable properties
atomic //default
nonatomic
strong=retain //default
weak
retain
assign //default
unsafe_unretained
copy
readonly
readwrite //default
so below ...