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How to print a dictionary's key?
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Caution: if you change iteritems to items, then as originally shown this answer will only return the first key -- if there are multiple matches. To solve this, create a blank list before the for loop (values_list = []), then append keys to this list (values_list.appen...
Why was the arguments.callee.caller property deprecated in JavaScript?
...if we can't guarantee that a function f will not call an unknown function, then it is not possible to inline f. Basically it means that any call site that may have been trivially inlinable accumulates a large number of guards, take:
function f(a, b, c, d, e) { return a ? b * c : d * e; }
If the ...
Why does the C# compiler not fault code where a static method calls an instance method?
...eter number and parameter types etc., not static vs. non-static), and only then check for static. But that means that the static check has to wait until runtime. Hence the observed behavior.
Late addition: Some background on why they chose to do things this funny order can be inferred from this blo...
Getting the max value of an enum
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I agree with Matt's answer. If you need just min and max int values, then you can do it as follows.
Maximum:
Enum.GetValues(typeof(Foo)).Cast<int>().Max();
Minimum:
Enum.GetValues(typeof(Foo)).Cast<int>().Min();
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Can you create nested WITH clauses for Common Table Expressions?
... --WITH B AS ( SELECT COUNT(1) AS _CT FROM C ) SELECT CASE _CT WHEN 1 THEN 1 ELSE 0 END FROM B --doesn't work
SELECT CASE WHEN count = 1 THEN 1 ELSE 0 END AS CT FROM (SELECT COUNT(1) AS count FROM dual)
union all
select 100 AS CT from dual
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How to Join to first row
...found that does a real "Left" join, meaning it does not add any more lines then is in the "Left" table. You just need to put in subquery and add "where RowNum is not null"
– user890332
May 10 '19 at 17:55
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Convert date to another timezone in JavaScript
... This answer shows correctly passing a time zone to toLocaleString, but then it very incorrectly shows passing that string back into the Date constructor. That is asking for trouble. The Date string parser is not required to accept locale specific formats, and the input would be treated as if it...
Chrome Dev Tools: How to trace network for a link that opens a new tab?
...0), you can go to the Developer Tools Settings menu (open Developer Tools, then use the 3-dots menu or hit F1) and check the box that says "Auto-open DevTools for popups".
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Referencing a string in a string array resource with xml
...duplicate the a first item several times when building your array, you can then copy and paste between your individual strings and the string-array fairly easily. Might help with speeding up the creation of your string-array :)
– ArtOfWarfare
Oct 22 '12 at 17:4...
How is the undo tree used in Vim?
...e via :undolist. This will let you jump between branches easily. You can then use u and Ctrl-R to move up and down that branch.
There are some good examples in the Vim help. The best way to figure out how this works is to play with it a bit.
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