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Check if a string has white space
...) {
return /\s/g.test(s);
}
This will also check for other white space characters like Tab.
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...拓展：数据表格视图，表格形式显示列表
【剪贴板】 Clipboard 拓展：实现剪贴板的复制粘贴功能
【Socket】 ClientSocketAI2Ext 拓展加强版：TCP/IP传输协议
【FTP】 FTP 客户端拓展：FTP协议连接、上传、下载、创建、修改目录等
【...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...拓展：数据表格视图，表格形式显示列表
【剪贴板】 Clipboard 拓展：实现剪贴板的复制粘贴功能
【Socket】 ClientSocketAI2Ext 拓展加强版：TCP/IP传输协议
【FTP】 FTP 客户端拓展：FTP协议连接、上传、下载、创建、修改目录等
【...
What is the size of column of int(11) in mysql in bytes?
...ytes (64 bit).
The length just specifies how many characters to pad when selecting data with the mysql command line client. 12345 stored as int(3) will still show as 12345, but if it was stored as int(10) it would still display as 12345, but you would have the option to pad the first five digits. ...
Please explain the exec() function and its family
...ed by the caller
You can mix them, therefore you have:
int execl(const char *path, const char *arg, ...);
int execlp(const char *file, const char *arg, ...);
int execle(const char *path, const char *arg, ..., char * const envp[]);
int execv(const char *path, char *const argv[]);
int execvp(const...
How to convert a number to string and vice versa in C++
...ersion succeeded and idx is not 0, idx will contain the index of the first character that was not used for decoding. This could be an index behind the last character.
Finally, the integral types allow to specify a base, for digits larger than 9, the alphabet is assumed (a=10 until z=35). You can fi...
How can I use “sizeof” in a preprocessor macro?
...ou can use following macro:
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
Usage:
BUILD_BUG_ON( sizeof(someThing) != PAGE_SIZE );
This article explains in details why it works.
3. MS-specific
On Microsoft C++ compiler you can use C_ASSERT macro (requires #include &...
How do I find out which computer is the domain controller in Windows programmatically?
...
@DorkyEngineer how about marking this as your selected answer?
– ErikE
Jan 4 '13 at 2:44
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How to remove illegal characters from path and filenames?
I need a robust and simple way to remove illegal path and file characters from a simple string. I've used the below code but it doesn't seem to do anything, what am I missing?
...
How do I use pagination with Django class based generic ListViews?
..._data()
df = pd.DataFrame(list(self.model.objects.all().values()))
ipc = df.groupby('ip')['ip'].count().sort_values(ascending=False)
urlc = df.groupby('url')['url'].count().sort_values(ascending=False).to_dict()
ipc = tuple(ipc.to_dict().items())
urlc = tuple(urlc.items())
...