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Is it possible to do start iterating from an element other than the first using foreach?
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Good call. WTB auto-complete (gahh can't remember the real name of it) in stackoverflow ;)
– MoarCodePlz
Jun 21 '11 at 17:56
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Small Haskell program compiled with GHC into huge binary
Even trivially small Haskell programs turn into gigantic executables.
2 Answers
2
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Heroku Postgres - terminate hung query (idle in transaction)
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(The query may need mending dependent of the version of postgres - eventually, just select * from pg_stat_activity). You'll find the pid in the first (left) column, and the first (top) row is likely to be the query you'd like to terminate. I'll assume the pid is 1234 below.
You may cancel a que...
How can you diff two pipelines in Bash?
...dev/fd/63 to get a filename that the command can open and read from to actually read from an already-open file descriptor that bash set up before exec'ing the command. (i.e. bash uses pipe(2) before fork, and then dup2 to redirect from the output of quux to an input file descriptor for diff, on fd ...
How do I create an average from a Ruby array?
...void integer division or your results will be wrong. Also, this isn't generally applicable to every possible element type (obviously, an average only makes sense for things that can be averaged). But if you want to go that route, use this:
class Array
def sum
inject(0.0) { |result, el| result...
Run all SQL files in a directory
...LEXPRESS" /d "TESTDEV_DB" -U "atiour" -P "atiour" -i"%%G" pause REM REM All Script Run Successfully REM
– atik sarker
Jul 14 '17 at 12:39
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Closing WebSocket correctly (HTML5, Javascript)
...ink the connection is still open even when it's not.
The browser should really do this for you when you close or reload the page. However, you can make sure a close frame is sent by doing capturing the beforeunload event:
window.onbeforeunload = function() {
websocket.onclose = function () {};...
Revert a range of commits in git
...g for:
git revert B^..D
B^ means "the first parent commit of B": that allows to include B in the revert.
See "git rev-parse SPECIFYING REVISIONS section" which include the <rev>^, e.g. HEAD^ syntax: see more at "What does the caret (^) character mean?")
Note that each reverted commit is ...
How to get ELMAH to work with ASP.NET MVC [HandleError] attribute?
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Excellent. I wasn't trying to implement Elmah at all. I was just trying to hook up my own error reporting I've used for years in a way that works well with MVC. Your code gave me a starting point. +1
– Steve Wortham
Nov 18 '09 at 3:...
Replace a value if null or undefined in JavaScript
... boolean value but the first value that can be converted to true.
Additionally use an array of objects instead of one single object:
var options = {
filters: [
{
name: 'firstName',
value: 'abc'
}
]
};
var filter = options.filters[0] || ''; // is {n...