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break out of if and foreach
...
A safer way to approach breaking a foreach or while loop in PHP is to nest an incrementing counter variable and if conditional inside of the original loop. This gives you tighter control than break; which can cause havoc elsewhere on a complicated page.
Example:
// Setup a counter
$...
Python json.loads shows ValueError: Extra data
...) # == json.loads(json.dumps({}) + json.dumps({}))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\json\__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "C:\Python27\lib\json\decoder.py", line 368, in decode
...
Is there any way to kill a Thread?
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It is generally a bad pattern to kill a thread abruptly, in Python and in any language. Think of the following cases:
the thread is holding a critical resource that must be closed properly
the thread has created several other threads ...
Regex doesn't work in String.matches()
...e \Apattern) and Python 3.x has got a nice .fullmatch() method. In JS, Go, PHP and .NET, the there are no regex methods that anchor the match implicitly. ElasticSearch, XML Schema and HTML5/Validators Angluar patterns are always anchored by default. In Swift/Objective C, there is a way to anchor th...
How can you profile a Python script?
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Python includes a profiler called cProfile. It not only gives the total running time, but also times each function separately, and tells you how many times each function was called, making it easy to determine where you should make optimizations.
You c...
call a static method inside a class?
...that a static method call is taking place.
$this::staticMethod();
Since PHP 5.3 you can use $var::method() to mean <class-of-$var>::; this is quite convenient, though the above use-case is still quite unconventional. So that brings us to the most common way of calling a static method:
self...
Can't pickle when using multiprocessing Pool.map()
...nsider it "easy" or not;-) is to add the infrastructure to your program to allow such methods to be pickled, registering it with the copy_reg standard library method.
For example, Steven Bethard's contribution to this thread (towards the end of the thread) shows one perfectly workable approach to a...
Find all controls in WPF Window by type
...ild = VisualTreeHelper.GetChild(depObj, i);
if (child != null && child is T)
{
yield return (T)child;
}
foreach (T childOfChild in FindVisualChildren<T>(child))
{
yield return childOfChild;
...
Split output of command by columns using Bash?
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I think the simplest way is to use awk. Example:
$ echo "11383 pts/1 00:00:00 bash" | awk '{ print $4; }'
bash
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Truncate a string straight JavaScript
...ML, you must obey HTML escaping rules. So whilst ‘createTextNode('A<B&C')’ is fine, with innerHTML you would have to say ‘innerHTML= 'A<B&C'’.
– bobince
Aug 19 '09 at 23:46
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