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Default argument values in JavaScript functions [duplicate]
...possible to assign a param the falsy value passed as the argument.
So, in order to handle only undefined values explicitly, the preferred approach would be,
function C(a, b) {
a = typeof a === 'undefined' ? DEFAULT_VALUE_A : a;
b = typeof b === 'undefined' ? DEFAULT_VALUE_B : b;
}
...
UITapGestureRecognizer - single tap and double tap
... I just needed to add tapCount=0 on each handler (singleTap, doubleTap) in order to be sure that following touches are recognized as well.
– Sirio
Aug 20 '16 at 14:31
add a co...
How do I browse an old revision of a Subversion repository through the web view?
...ted into this answer, which is otherwise misleading: you do NOT stick !svn/etc... onto the end of your URL. (1) find your Repository Root by svn info . (2) after that append /!svn/bc/<revision_number>/ (3) then append the path to your directory or file, if any.
– Bob Stei...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
... Clients();//构造函数
virtual ~Clients();//析构函数
int GetClientCount();
bool PutClient(int sock,const struct sockaddr_in &clientAddr);
void RemoveClient(int sock);
bool GetAddrBySocket(int sock,struct sockaddr_in *addr);
bool PutName(int sock,const char *name, int...
How do I append text to a file?
...ommand with sudo prepended. I recently found out this also works with nano etc (by accidentally trying to nano nano auth...)
– Sandra
May 11 '18 at 23:23
...
UITableView with fixed section headers
...
@bachonk i am using a stretchable header view. and my style is UITableViewStyleGrouped. i want to fix the header when scrolling up. if i make it UITableViewStylePlain then the header is getting fixed in the middle of the screen, i want to scroll the ...
How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
...OT NULL,
VendorNumber number(2) REFERENCES Vendor(VendorNumber),
ReorderQuantity number(3) NOT NULL
);
Many-to-many (M:M)
A relationship is many-to-many if and only if one record from table A is related to one or more records in table B and vice-versa.
To establish a many-to-many relatio...
Why does .NET foreach loop throw NullRefException when collection is null?
...an be extended further in interesting ways (for loops, reversing, leaping, etc). Thanks for sharing.
– Lara
Feb 16 '17 at 17:08
...
What is the difference between Class and Klass in ruby?
..., so you won't be able to have variables named def or module or if or end, etc - class is no different.
For example, consider the following:
def show_methods(class)
puts Object.const_get(class).methods.inspect
end
show_methods "Kernel"
Trying to run this results in an error, since you can't us...
How can I split a shell command over multiple lines when using an IF statement?
...
For Windows/WSL/Cygwin etc users:
Make sure that your line endings are standard Unix line feeds, i.e. \n (LF) only.
Using Windows line endings \r\n (CRLF) line endings will break the command line break.
This is because having \ at the end of a...