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What is a “callable”?
...if the argument is either:
an instance of a class with a __call__ method or
is of a type that has a non null tp_call (c struct) member which indicates callability otherwise (such as in functions, methods etc.)
The method named __call__ is (according to the documentation)
Called when the inst...
`testl` eax against eax?
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It tests whether eax is 0, or above, or below. In this case, the jump is taken if eax is 0.
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Match multiline text using regular expression
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First, you're using the modifiers under an incorrect assumption.
Pattern.MULTILINE or (?m) tells Java to accept the anchors ^ and $ to match at the start and end of each line (otherwise they only match at the start/end of the entire string).
Pattern.DOTALL or (?s) tell...
What does 'wb' mean in this code, using Python?
...s fine.
But if you supposed to read that jpg file you need to use 'rb'
More info
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there are also modes like 'rb', 'wb',
and 'r+b'. Python on Windows makes a
distinction between text and binary
files; the end-of-li...
Are SVG parameters such as 'xmlns' and 'version' needed?
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All user agents (browsers) ignore the version attribute, so you can always drop that.
If you embed your SVG inline in a HTML page and serve that page as text/html then xmlns attributes are not required. Embedding SVG inline in HTML documents is a fairly ...
How can I determine if a String is non-null and not only whitespace in Groovy?
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myString?.trim() returns a string (or null or blank) instead of the question's which returns a boolean. I guess it depends how you're using the output, for just an 'if' it's fine.
– Steven
Feb 7 '12 at 0:31
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Regex lookahead for 'not followed by' in grep
I am attempting to grep for all instances of Ui\. not followed by Line or even just the letter L
5 Answers
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Alternatives to JavaScript
At the moment, the only fully supported language, and the de-facto standard for DOM tree manipulation in the browser is JavaScript. It looks like it has deep design issues that make it a minefield of bugs and security holes for the novice.
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Get started with Latex on Linux [closed]
Impressed by is-latex-worth-learning-today , and many how-to's on Windows,
8 Answers
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How to asynchronously call a method in Java
I've been looking at Go's goroutines lately and thought it would be nice to have something similar in Java. As far as I've searched the common way to parallelize a method call is to do something like:
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