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Windows batch: echo without new line
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@user246694 < nul is a redirection from the NUL device. It contains nothing, but that is enough for set /p to stop waiting for user input
– jeb
Jul 17 '14 at 5:53
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Make UINavigationBar transparent
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to achieve this in Swift from within a ViewController, do it like this: self.navigationController?.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: UIBarMetrics.Default) self.navigationController?.navigationBar.shadowImage = ...
How can I generate an MD5 hash?
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From Java 11 on, you can use hashtext = "0".repeat(32 - hashtext.length()) + hashtext instead of the while, so the editors won't give you a warning that you're doing string concatenation inside a loop.
–...
Asynchronously wait for Task to complete with timeout
...c
}
And here's a great blog post "Crafting a Task.TimeoutAfter Method" (from MS Parallel Library team) with more info on this sort of thing.
Addition: at the request of a comment on my answer, here is an expanded solution that includes cancellation handling. Note that passing cancellation to the...
RegEx backreferences in IntelliJ
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IntelliJ uses $1 for replacement backreferences.
From IntelliJ's help:
For more information on regular expressions and their syntax, refer to documentation for java.util.regex Back references should have $n, rather than \n format.
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JavaScript: remove event listener
... Unfortunately this doesn't work with ECMAScript 5 (2009) or later, from the MDN link: "The 5th edition of ECMAScript (ES5) forbids use of arguments.callee() in strict mode. Avoid using arguments.callee() by either giving function expressions a name or use a function declaration where a funct...
Why is Java's AbstractList's removeRange() method protected?
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Yes, because that's not how you remove a range from outside code. Instead, do this:
list.subList(start, end).clear();
This actually calls removeRange behind the scenes.†
The OP asks why removeRange is not part of the List public API. The reason is described in Ite...
JavaScript blob filename without link
...er than a particular threshold. e.g-> 2 MB for chrome. This size varies from browser to browser.
– manojadams
Sep 2 '17 at 15:58
5
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ipython notebook clear cell output in code
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You can use IPython.display.clear_output to clear the output of a cell.
from IPython.display import clear_output
for i in range(10):
clear_output(wait=True)
print("Hello World!")
At the end of this loop you will only see one Hello World!.
Without a code example it's not easy to give y...
Git reset --hard and push to remote repository
... of git
git pull
# remove what you don't like anymore
rm -rf src
# restore from the tar file
tar xvfz /tmp/current.tgz
# commit everything back to git
git commit -a
# now you can properly push
git push
This way the state of affairs in the src is kept in a tar file and git is forced to accept this ...