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What is the use of “assert” in Python?

...gt;>> assert 2 > 5 Traceback (most recent call last): File "<string>", line 1, in <fragment> builtins.AssertionError: The first statement does nothing, while the second raises an exception. This is the first hint: asserts are useful to check conditions that should be true in...
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instantiate a class from a variable in PHP?

... If you work with namespace, put the current namespace into the string: $var = __NAMESPACE__ . '\\' . $var . 'Class'; – bastey Sep 2 '13 at 13:28 ...
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Check if value is in select list with JQuery

...ues containing any character, including ] and `\`. Avoid building selector strings from raw text without doing proper CSS-escaping. – bobince Feb 12 '10 at 1:28 ...
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Bash, no-arguments warning, and case decisions

...s"; fi Result No args Details -z is the unary operator for length of string is zero. $* is all arguments. The quotes are for safety and encapsulating multiple arguments if present. Use man bash and search (/ key) for "unary" for more operators like this. ...
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How to pass parameters using ui-sref in ui-router to controller

...ue, the param value will be treated as an array of values. squash - {bool|string=}: squash configures how a default parameter value is represented in the URL when the current parameter value is the same as the default value. We can call these params this way: // hidden param cannot be passed via...
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Swift equivalent for MIN and MAX macros

... accept any parameter type that conforms to Comparable protocol, may it be String, Character or one of your custom class or struct. Thereby, the following Playground sample code works perfectly: class Route: Comparable, CustomStringConvertible { let distance: Int var description: String {...
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Is APC compatible with PHP 5.4 or PHP 5.5?

...ble=1 opcache.enable_cli=1 opcache.memory_consumption=512 opcache.interned_strings_buffer=24 opcache.max_accelerated_files=4000 opcache.revalidate_freq=3 opcache.fast_shutdown=1 ... Please note that we need to have two instances of: zend_extension = One in [OPcache] and one in [XDebug] sec...
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What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?

...efault font family used, use any of this by replacing the double quotation string "sans-serif-medium" FONT FAMILY TTF FILE 1 casual ComingSoon.ttf 2 cursive DancingScript-Regular.ttf 3 monospace ...
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Table with fixed header and fixed column on pure css

.../javascript" charset="utf-8" src="http://datatables.net/release-datatables/extras/FixedColumns/media/js/FixedColumns.js"></script> i don't see any other way of achieving this. Especially not by using css only. This is a lot to go through. Hope this helps :) ...
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Checking if an instance's class implements an interface?

...). Just as with Reflection, this allows you to specify the class name as a string and doesn't require an instance of the class: interface IInterface { } class TheClass implements IInterface { } $interfaces = class_implements('TheClass'); if (isset($interfaces['IInterface'])) { echo "Yes!"; }...