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Vim: How to insert in visual block mode?
... to the first character of the first line, but I'm back to normal mode. I know this because if I press "a", it moves the character to the right, and it says "-- INSERT --". If I type a few characters and press escape, it's not applied to the other lines.
– Tyler Collier
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Why do you need explicitly have the “self” argument in a Python method?
...k bork bork!
>>> c.foo()
Hi!
>>>
It also (as far as I know) makes the implementation of the python runtime easier.
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SSH to Elastic Beanstalk instance
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Elastic beanstalk CLI v3 now supports direct SSH with the command eb ssh. E.g.
eb ssh your-environment-name
No need for all the hassle of setting up security groups of finding out the EC2 instance address.
There's also this cool trick:
eb ssh -...
Command-line Tool to find Java Heap Size and Memory Used (Linux)?
...on you should do it within code or you can use jconsole. This is what I know there should also be many other ways.
– padippist
Jan 18 '17 at 6:47
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Date query with ISODate in mongodb doesn't seem to work
...-04-28T03:26:42.609Z"),
"flightId" : "590170f97cb84116075e2680",
now i want to find every 27th date document.so i used this....
> db.users.find({createdAt:{"$gte":ISODate("2017-04-27T00:00:00Z"),"$lt":ISODate("2017-04-28T00:00:00Z") }}).count()
result:1
this worked for me.
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What does it mean when git says a file “needs update”?
...d to /var/www/html/). After running this, [git status] and [git pull] both now show it's up-to-date.
– Keith DC
Jun 12 '15 at 5:46
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How do I fetch lines before/after the grep result in bash?
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Nice, ive had to look this up a few times now, maybe I can remember it as -A(FTER) -B(EFORE) -C(ONTEXT)
– Opentuned
Aug 30 '18 at 13:47
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Android.app Fragments vs. android.support.v4.app using ViewPager?
...ragments, the ones in v13 with native fragments.
The reason why there are now two fragment implementations is historical: Fragments in the android.app package were introduced with Android 3 for tablets only and the support library was created to bring fragments to phones running older versions. On ...
Is there a way to rename an Xcode 4 scheme?
...dow like this:
Select the scheme you want to change, and hit Return.
Now the scheme name will be editable, and you can change it to your hearts desire. Then hit Return again to save it.
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...eckout B
$ echo 'B' > file2
$ git commit -m 'change on branch B' file2
Now, let's try the strategy option (doesn't really matter if we use theirs or ours for this explanation):
$ git merge -X ours A
$ cat file*
A
B
original
We end up with a merge of both branches' contents (branch "strategy-opt...