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How to validate a url in Python? (Malformed or not)
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Convert python datetime to epoch with strftime
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What is the difference between `new Object()` and object literal notation?
...as to what is happening, so using new Object(), you are really just typing more and (in theory, if not optimized out by the JavaScript engine) doing an unnecessary function call.
These
person = new Object() /*You should put a semicolon here too.
It's not required, but it is good practice.*/
-o...
Why is the order in dictionaries and sets arbitrary?
... new dict implementation that maintains insertion order, and is faster and more memory efficient to boot. Rather than keep a large sparse table where each row references the stored hash value, and the key and value objects, the new implementation adds a smaller hash array that only references indice...
Do browsers parse javascript on every page load?
... to be true.
I was unable to find any other information but you can read more about the speed improvements of the latest SquirrelFish Extreme engine here, or browse the source code here if you're feeling adventurous.
IE : Chakra Engine
There is no current information regarding IE9's JavaScript...
What exactly do “u” and “r” string flags do, and what are raw string literals?
...gt;>> sys.getsizeof(u'ciao')
34
The Unicode object of course takes more memory space (very small difference for a very short string, obviously ;-).
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Convert NaN to 0 in javascript
...which will have the same effect as above.
If the intent was to test for more than just NaN, then you can do the same, but do a toNumber conversion first.
a = +a || 0
This uses the unary + operator to try to convert a to a number. This has the added benefit of converting things like numeric str...
How can I maximize the editor pane in IntelliJ IDEA?
...ction Free Mode. In this mode, IntelliJ hides everything but the menu. For more details, follow their video detailing the new feature: https://www.youtube.com/watch?v=uVwE8MFgYig.
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How do you know what to test when writing unit tests? [closed]
...knew it would be good to start doing it but I had no idea how to start and more importantly what to test.
Then we had to rewrite an important piece of code in our accounting program.
This part was very complex as it involved a lot of different scenarios.
The part I'm talking about is a method to pa...
How to use RSpec's should_raise with any kind of exception?
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See the documentation (for RSpec 1 syntax) and RSpec 2 documentation for more.
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