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How to search and replace globally, starting from the cursor position and wrapping around the end of
...t, the substitution command is run for each line starting from
the current one until the end of file:
,$s/BEFORE/AFTER/gc
Then, that :substitute command is repeated with the same search
pattern, replacement string, and flags, using the :& command
(see :help :&):
1,''-&&
The latter...
return, return None, and no return at all?
...
On the actual behavior, there is no difference. They all return None and that's it. However, there is a time and place for all of these.
The following instructions are basically how the different methods should be used (or at least how I was taught they should be used), but they are not a...
Copying a HashMap in Java
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If you want a copy of the HashMap you need to construct a new one with.
myobjectListB = new HashMap<Integer,myObject>(myobjectListA);
This will create a (shallow) copy of the map.
share
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What is the copy-and-swap idiom?
...ent operator is arguably the most nuanced and difficult. How should it be done? What pitfalls need to be avoided?
The copy-and-swap idiom is the solution, and elegantly assists the assignment operator in achieving two things: avoiding code duplication, and providing a strong exception guarantee.
H...
How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
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ECB should not be used if encrypting more than one block of data with the same key.
CBC, OFB and CFB are similar, however OFB/CFB is better because you only need encryption and not decryption, which can save code space.
CTR is used if you want good parallelization (ie. sp...
How can a Metro app in Windows 8 communicate with a backend desktop app on the same machine?
... practical answer instead of just being told that it shouldn't / can't be done.
– dodgy_coder
Feb 22 '12 at 0:53
1
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Google Chrome form autofill and its yellow background
...me remembers some login/password it changes a background color to a yellow one.
28 Answers
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How to remove the first commit in git?
...ent branch.
If what you want is to merge the first commit with the second one, you can use the rebase command:
git rebase -i --root
A last way could be to create an orphan branch, a branch with the same content but without any commit history, and commit your new content on it:
git checkout --or...
Wrong Manifest.mf in IntelliJ IDEA created .jar
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As noted in @grudolf's comment in one of the other answers, one way to do this (and the only one that worked for me in an imported Gradle project) is to create an empty jar as follows:
Project Structure -> Artifacts -> + Jar -> Empty
Centre pane no...
How do cache lines work?
...bytes that begin at the cache line boundary (the largest address below the one you need that is multiple of 64).
Modern PC memory modules transfer 64 bits (8 bytes) at a time, in a burst of eight transfers, so one command triggers a read or write of a full cache line from memory. (DDR1/2/3/4 SDRAM...