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jquery variable syntax [duplicate]
...= 2;
alert($ + $$);
jQuery just assigns it's core function to a variable called $. The code you have assigns this to a local variable called self and the results of calling jQuery with this as an argument to a global variable called $self.
It's ugly, dirty, confusing, but $, self and $self are al...
Ruby ampersand colon shortcut [duplicate]
...this case is for the symbol. So, there's & and there's :foo.
The & calls to_proc on the object, and passes it as a block to the method. In Rails, to_proc is implemented on Symbol, so that these two calls are equivalent:
something {|i| i.foo }
something(&:foo)
Also, to_proc on Symbol is ...
What is the pythonic way to unpack tuples? [duplicate]
...2010, 10, 2, 11, 4, 0, 2, 41, 0)
dt = datetime.datetime(*t[0:7])
This is called unpacking a tuple, and can be used for other iterables (such as lists) too. Here's another example (from the Python tutorial):
>>> range(3, 6) # normal call with separate arguments
[3, 4, 5]
>&...
How to override a JavaScript function
...
Is it also possible to call the native version inside a custom parseFloat? I tried this but it errors 'Maximum call stack size exceeded': jsfiddle.net/huZG2. Thanks.
– pimvdb
Mar 23 '11 at 17:52
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How to stop Flask from initialising twice in Debug Mode? [duplicate]
...
The simplest thing to do here would be to add use_reloader=False to your call to app.run - that is: app.run(debug=True, use_reloader=False)
Alternatively, you can check for the value of WERKZEUG_RUN_MAIN in the environment:
if os.environ.get("WERKZEUG_RUN_MAIN") == "true":
# The reloader has...
What Does This Mean in PHP -> or => [duplicate]
...ject into $obj
$obj = new MyObject();
// Set a property in the $obj object called thisProperty
$obj->thisProperty = 'Fred';
// Call a method of the $obj object named getProperty
$obj->getProperty();
share
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Remove notification after clicking
...
Easy, simply call this:
mBuilder.setAutoCancel(true);
Also, while it's not really necessary, if you really want to use FLAG_AUTO_CANCEL, just call this before you call mNotificationManager.notify:
mBuilder.build().flags |= Notificatio...
手把手教你用Strace诊断问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ctually a library function layered on top of the underlying clone() system call, hereinafter referred to as sys_clone. A description of sys_clone is given towards the end of this page.
Unlike fork(2), these calls allow the child process to share parts of its execution context with the calling proc...
Async Procedures 拓展：异步任务拓展，异步处理耗时任务 - App Inventor 2...
...ondary)]Capture[color=var(--secondary-high)]368×539 18.2 KB
HOW TO USE?Call a Procedure From Anywhere On You app using this block
[color=var(--tertiary)][color=var(--secondary)]Capture[color=var(--secondary-high)]418×219 10.1 KB
Call a Procedure After a Certain Time Using this Block
[color...
How do I capture the output into a variable from an external process in PowerShell?
...directly, as in any shell. Doing so keeps the application connected to the calling console's standard streams, allowing its output to be captured by simple assignment $output = netdom ..., as detailed below.
Fundamentally, capturing output from external programs works the same as with PowerShell-nat...