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Python using enumerate inside list comprehension
... j in enumerate(mylist)]
You need to put i,j inside a tuple for the list comprehension to work. Alternatively, given that enumerate() already returns a tuple, you can return it directly without unpacking it first:
[pair for pair in enumerate(mylist)]
Either way, the result that gets returned is...
How to download and save a file from Internet using Java?
There is an online file (such as http://www.example.com/information.asp ) I need to grab and save to a directory. I know there are several methods for grabbing and reading online files (URLs) line-by-line, but is there a way to just download and save the file using Java?
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How to do stateless (session-less) & cookie-less authentication?
... you could build something based on logins too)
One popular, although not completely stateless mechanism (assuming you have JavaScript execution) is to embed the session cookie in the JavaScript. The security guy in me is screaming at this, but it could actually work - every request has a X-Authent...
WPF global exception handler [duplicate]
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What does the caret (‘^’) mean in C++/CLI?
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Python non-greedy regexes
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what is the common english name for this *? ?
– Trevor Boyd Smith
Sep 4 '15 at 13:44
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Using ECMAScript 6
...ove developing in ES6, then you could write ES6 code and use an ES6-to-ES5 compiler to generate JavaScript code that is compatible with all existing (modern) browsers.
For example, see https://github.com/google/traceur-compiler. As of writing, it supports all of the new syntax features of ES6. Toge...
What does (angle brackets) mean in Java?
...rayList of Strings.
This is great news, because at another time, I could come along and create a Pool<Integer> which would use the same code, but have Integer wherever you see T in the source.
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PostgreSQL return result set as JSON array?
...an array and then convert them:
SELECT to_jsonb(array_agg(t)) FROM t
or combine json_agg with a cast:
SELECT json_agg(t)::jsonb FROM t
My testing suggests that aggregating them into an array first is a little faster. I suspect that this is because the cast has to parse the entire JSON result.
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