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Revert to a commit by a SHA hash in Git? [duplicate]
...eate the correct state of the index to make the commit.
# Reset the index and working tree to the desired tree
# Ensure you have no uncommitted changes that you want to keep
git reset --hard 56e05fced
# Move the branch pointer back to the previous HEAD
git reset --soft HEAD@{1}
git commit -m "Rev...
Opening port 80 EC2 Amazon web services [closed]
...to the "Network & Security" -> Security Group settings in the left hand navigation
Find the Security Group that your instance is apart of
Click on Inbound Rules
Use the drop down and add HTTP (port 80)
Click Apply and enjoy
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Why can't I center with margin: 0 auto?
I have a #header div that is 100% width and within that div I have an unordered list. I have applied margin: 0 auto to the unordered list but it won't center it within the header div.
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sqlalchemy flush() and get inserted id?
...re populated immediately within the flush() process as they are generated, and no call to commit() should be required. So the answer here lies in one or more of the following:
The details of your mapping
If there are any odd quirks of the backend in use (such as, SQLite doesn't generate integer v...
How can you programmatically tell an HTML SELECT to drop down (for example, due to mouseover)?
...ou can't do this with a HTML select tag, but you can do it with JavaScript and HTML. There are variety of existing controls that do this - for instance, the "suggest" list attached to the SO "interesting/ignored tag" entry, or Gmail's lookup for email adresses.
There are many JavaScript+HTML contro...
What is Scala's yield?
I understand Ruby and Python's yield. What does Scala's yield do?
9 Answers
9
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Swift - Split string over multiple lines
...he expression is "too complex to be solved in a reasonable amount of time" and to consider breaking it down to simpler expressions. That's ugly but easy enough to accomplish, just wrap sections in parens.
– clearlight
Dec 7 '14 at 0:02
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How to modify a global variable within a function in bash?
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When you use a command substitution (ie the $(...) construct), you are creating a subshell. Subshells inherit variables from their parent shells, but this only works one way - a subshell cannot modify the environment of its parent shell. Your v...
Google Maps API v3: How to remove all markers?
... The markers are still kept in the array though so it will grow larger and larger. Would suggest clearing the array as well after the loop
– Ami
Oct 5 '12 at 9:08
5
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On logout, clear Activity history stack, preventing “back” button from opening logged-in-only Activi
...f the history stack so that pressing the "back" button returns the user to Android's home screen.
18 Answers
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