大约有 42,000 项符合查询结果（耗时：0.0642秒） [XML]
SortedList, SortedDictionary and Dictionary
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I can see the proposed answers focus on performance. The article provided below does not provide anything new regarding performance, but it explains the underlying mechanisms. Also note it does not focus on the three Collection Types mentioned in the question, but addresses all the Types of th...
String.replaceAll single backslashes with double backslashes
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To avoid this sort of trouble, you can use replace (which takes a plain string) instead of replaceAll (which takes a regular expression). You will still need to escape backslashes, but not in the wild ways required with regular exp...
Android ListView not refreshing after notifyDataSetChanged
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Look at your onResume method in ItemFragment:
@Override
public void onResume() {
super.onResume();
items.clear();
items = dbHelper.getItems(); // reload the items from database
adapter.notifyDataSetChanged();
}
what you just have updated before calling notify...
Open a URL in a new tab (and not a new window)
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@AliHaideri The Javascript has nothing to do with how the new tab/window is opened. It's all determined by your browser's settings. Using window.open tells the browser to open something new, then the browser opens up what is chosen...
What are the git concepts of HEAD, master, origin?
...ain branch". Most shops have everyone pushing to master, and master is considered the definitive view of the repo. But it's also common for release branches to be made off of master for releasing. Your local repo has its own master branch, that almost always follows the master of a remote repo.
ori...
Difference between HEAD and master
... also pushing RefSpecs in the Pro Git book.
What you are seeing is the sidebar representing all the refspecs of your remote repo in the Experimental GitX fork of the GitX project.
The HEAD will designate the default branch for that remote.
See git remote set-head man page:
Having a default...
How do I use vi keys in ipython under *nix?
... it is: ESC+CTRL+j. To switch back to Emacs mode one can use C-e but that didn't appear to work for me - I had to instead do M-C-e - on my Mac it is: ESC+CTRL+e.
FYI my ~/.inputrc is set up as follows:
set meta-flag on
set input-meta on
set convert-meta off
set output-meta on
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What does each of the [y,n,q,a,d,/,K,j,J,g,e,?] stand for in context of git -p
...ch for a hunk matching the given regex
j - leave this hunk undecided, see next undecided hunk
J - leave this hunk undecided, see next hunk
k - leave this hunk undecided, see previous undecided hunk
K - leave this hunk undecided, see previous hunk
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ERROR: Error installing capybara-webkit:
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On fedora is a bit more complicated. I did the next which takes a while:
$ sudo dnf install make gcc-c++ gdb qt5*-devel qt-creator
$ export QMAKE=/usr/bin/qmake-qt5
$ gem install capybara-webkit
Then it worked!
See more info on capybara-webkit wiki
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d3 axis labeling
... .attr("class", "x label")
.attr("text-anchor", "end")
.attr("x", width)
.attr("y", height - 6)
.text("income per capita, inflation-adjusted (dollars)");
And the y-axis label like this:
svg.append("text")
.attr("class", "y label")
.attr("text-anchor", "end")
.attr("y",...