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Using reflect, how do you set the value of a struct field?
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thanks! now that I've read peterSO's notes, this makes perfect sense. I was using foo, not &foo, so could not be changed, and was unsure what Elem() was about.
– cc young
Jun 20 '11 at 6:5...
Preserving order with LINQ
...hile
Take
TakeWhile
Where
Zip (new in .net 4)
Destroys Order - we don't know what order to expect results in.
ToDictionary
ToLookup
Redefines Order Explicitly - use these to change the order of the result
OrderBy
OrderByDescending
Reverse
ThenBy
ThenByDescending
Redefines Order according t...
Change a branch name in a Git repo
... check with:
git branch -a
As you can see, only the local name changed
Now, to change the name also in the remote you must do:
git push origin :old_name
This removes the branch, then upload it with the new name:
git push origin new_name
Source: https://web.archive.org/web/20150929104013/ht...
“use database_name” command in PostgreSQL
... testdatabase
At this point you might see the following output
You are now connected to database "testdatabase" as user "user_name".
testdatabase=#
Notice how the prompt changes. Cheers, have just been hustling looking for this too, too little information on postgreSQL compared to MySQL and th...
Android equivalent of NSUserDefaults in iOS
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Update 2015: Android recommends the use of apply() now over commit() because apply() operates on a background thread instead of storing the persistent data immediately and possible blocking the main thread.
– AppsIntheParkNYC
Jul 6 '15 a...
Using pg_dump to only get insert statements from one table within database
...ions were removed from PostgreSQL 8.4 (see 8.4.0 release notes). You must now use the "long" names: pg_dump --column-inserts --data-only --table=<table> <database>
– Matthew Wood
May 18 '10 at 14:49
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Using union and order by clause in mysql
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This was working great for older MySQL versions, now this approach will NOT work. Because SQL standard do not guarantee to preserve order of subquery.
– Andrei
Jun 18 '18 at 5:51
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How do I run a node.js app as a background service?
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cool part to know: nohup stands for no hangup which comes from the old days, where you wanted you keep a process alive when you "hangup" your modem.
– jAndy
Oct 28 '10 at 19:48
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Loop through properties in JavaScript object with Lodash
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+ I know they want lodash funct-style, mine was just a way to let the OP understand u can loop an obj w/out depending on a library (in case he just wants that functionality w/o including lodash)
– stecb
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Python's equivalent of && (logical-and) in an if-statement
... || and ! are not valid Python operators.
Some of the operators you may know from other languages have a different name in Python.
The logical operators && and || are actually called and and or.
Likewise the logical negation operator ! is called not.
So you could just write:
if len(a) % ...