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What underlies this JavaScript idiom: var self = this?
...in event handlers (especially in closures).
Edit: Note that using self is now discouraged as window.self exists and has the potential to cause errors if you are not careful.
What you call the variable doesn't particularly matter. var that = this; is fine, but there's nothing magic about the name....
PHP append one array to another (not array_push or +)
...', 'b');
$b = array('c', 'd');
$merge = array_merge($a, $b);
// $merge is now equals to array('a','b','c','d');
Doing something like:
$merge = $a + $b;
// $merge now equals array('a','b')
Will not work, because the + operator does not actually merge them. If they $a has the same keys as $b, it...
What is the purpose and use of **kwargs?
...Swim(where, why)
elif what == 'walk':
doWalk(where, why)
...
Now you get a new method "drive":
elif what == 'drive':
doDrive(where, why, vehicle)
But wait a minute, there is a new parameter "vehicle" -- you did not know it before. Now you must add it to the signature of the myDo-...
How do you use bcrypt for hashing passwords in PHP?
Every now and then I hear the advice "Use bcrypt for storing passwords in PHP, bcrypt rules".
11 Answers
...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...式如下：
systime()
实例：
$ awk '{ now = systime(); print now }'
strftime函数使用C库中的strftime函数格式化时间。格式如下：
systime( [format specification][,timestamp] )
Table 3. 日期和时间格式说明符
...
Hidden Features of Xcode
...re shortcuts (which you can do by drag-dropping) to files I am using right now. Generally this is more useful when I'm working with a large or unfamiliar project.
To show the Favorites Bar, select the following menu option:
View > Layout > Show Favorites Bar
...
How to enable local network users to access my WAMP sites?
...0.1 or ::1
But as it is a full version of Apache all you need is a little knowledge of the server you are using.
The simple ( hammer to crack a nut ) way is to use the 'Put Online' wampmanager menu option.
left click wampmanager icon -> Put Online
This however tells Apache it can accept connecti...
Rule-of-Three becomes Rule-of-Five with C++11?
...since C++11 was passed? I believe struct C { virtual ~C() = default; }; is now allowed and the most concise option. The prohibition ("- it shall not be virtual") from n3242 is not present anymore in n3290 and GCC allows it while previously it didn't.
– Luc Danton
...
Edit and Continue: “Changes are not allowed when…”
... TypeMock Isolator (mocking framework) finally helped! Edit & Continue now works!!!
Here is the answer from TypeMock support:
After looking further into the edit
and continue issue, and conversing
about it with Microsoft, we reached
the conclusion it cannot be resolved
for Isolator....
Jump into interface implementation in Eclipse IDE
You know how in Eclipse, pressing F3 over a method will take you to its declaration? Well I have a method that is part of an interface; clicking F3 over this naturally takes me to the declaring interface.
...