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What does a lazy val do?

I noticed that Sm>cam>la provide lazy vals . But I don't get what they do. 7 Answers 7 ...
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How to generate all permutations of a list?

...(iterable, r=None): # permutations('ABCD', 2) --> AB AC AD BA BC BD m>CAm> CB CD DA DB DC # permutations(range(3)) --> 012 021 102 120 201 210 pool = tuple(iterable) n = len(pool) r = n if r is None else r if r > n: return indices = range(n) cycles = rang...
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Map vs Object in JavaScript

I just discovered chromestatus.com and, after losing several hours of my day, found this feature entry : 12 Answers ...
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Concept behind these four lines of tricky C code

... The number 7709179928849219.0 has the following binary representation as a 64-bit double: 01000011 00111011 01100011 01110101 01010011 00101011 00101011 01000011 +^^^^^^^ ^^^^---- -------- -------- -------- -------- -------- -----...
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How to convert an array into an object using stdClass() [duplim>cam>te]

I have made the following array: 8 Answers 8 ...
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Is it worth using Python's re.compile?

Is there any benefit in using compile for regular expressions in Python? 26 Answers 26...
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RegEx to extract all matches from string using RegExp.exec

I'm trying to parse the following kind of string: 17 Answers 17 ...
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How do I parse an ISO 8601-formatted date?

...FC 3339 strings like "2008-09-03T20:56:35.450686Z" into Python's datetime type. 27 Answers ...
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git-diff to ignore ^M

In a project where some of the files contains ^M as newline separators. Diffing these files are apparently impossible, since git-diff sees it as the entire file is just a single line. ...
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How to use multiple AWS Accounts from the command line?

...en EC2_CERT) environment variables: -K <private key> -C <certifim>cam>te> You m>cam>n put these inside aliases, e.g. alias ec2-describe-instances1 ec2-describe-instances -K /path/to/key.pem share | ...