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Use curly braces to initialize a Set in Python
...t literal syntax:
my_set = {'foo', 'bar', 'baz'}
It's not available before Python 2.7
There's no way to express an empty set using that syntax (using {} creates an empty dict)
Those may or may not be important to you.
The section of the docs outlining this syntax is here.
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jQuery / Javascript - How do I convert a pixel value (20px) to a number value (20)
I know jQuery has a helper method for parsing unit strings into numbers. What is the jQuery method to do this?
6 Answers
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How to prevent logback from outputting its own status at the start of every log when using a layout
This seems like a carelessness error, but I can't seem to find the cause. Logging with logback/slf4j (most recent version slf4j-api-1.6.1, logback core/classic 0.9.24). Simplest log configuration for testing is:
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Why does 2 == [2] in JavaScript?
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You can look up the comparison algorithm in the ECMA-spec (relevant sections of ECMA-262, 3rd edition for your problem: 11.9.3, 9.1, 8.6.2.6).
If you translate the involved abstract algorithms back to JS, what happens when evaluating 2 == [2] is basically th...
VBA - how to conditionally skip a for loop iteration
I have a for loop over an array. What I want to do is test for a certain condition in the loop and skip to the next iteration if true:
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What are the differences between BDD frameworks for Java? [closed]
What are the pros and cons of each Behavior Driven Development (BDD) framework for Java?
8 Answers
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How to copy text to clipboard/pasteboard with Swift
I'm looking for a clean example of how to copy text to iOS clipboard that can then be used/pasted in other apps.
4 Answers
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Cannot set some HTTP headers when using System.Net.WebRequest
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If you need the short and technical answer go right to the last section of the answer.
If you want to know better, read it all, and i hope you'll enjoy...
I countered this problem too today, and what i discovered today is that:
the above...
Does it make sense to use “as” instead of a cast even if there is no null check? [closed]
...s true. That sounds like trying to micro-optimize to me. You should use a normal cast when you are sure of the type. Besides generating a more sensible exception, it also fails fast. If you're wrong about your assumption about the type, your program will fail immediately and you'll be able to see th...
JavaScript isset() equivalent
...tion will also evaluate to false if array.foo does exists but is false or 0 (and probably other values as well).
24 A...