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What are these attributes: `aria-labelledby` and `aria-hidden`
... attributes are called as ARIA attribute states and model
aria-labelledby: Identifies the element (or elements) that labels the current element.
aria-hidden (state): Indicates that the element and all of its descendants are not visible or perceivable to any user as implemented
by the aut...
Regular expression to match DNS hostname or IP Address?
...
You can use the following regular expressions separately or by combining them in a joint OR expression.
ValidIpAddressRegex = "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$";
ValidHostnameRegex = "^(([a-zA-Z0-9]|[a-zA-Z0-9]...
Why am I seeing “TypeError: string indices must be integers”?
...te its indices (and step range, e.g. str[from:to:step])
tuples are defined by commas , (e.g. t = 1,)
add some information to error messages for users to understand what went wrong
Cheers and happy programming
winklerrr
[I know this question was already answered and this wasn't exactly the quest...
How can I undo git reset --hard HEAD~1?
Is it possible to undo the changes caused by the following command? If so, how?
18 Answers
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Removing double quotes from variables in batch file creates problems with CMD environment
...t play.
The problem of quotes in batch file parameters is normally solved by removing the quotes with %~ and then putting them back manually where appropriate.
E.g.:
set cmd=%~1
set params=%~2 %~3
"%cmd%" %params%
Note the quotes around %cmd%. Without them, path with spaces won't work.
If you...
Why is it slower to iterate over a small string than a small list?
... overhead that isn't iteration). This removes the building of the iterable by pre-assigning it:
>>> python3 -m timeit -s 'iterable = "abc"' '[x for x in iterable]'
1000000 loops, best of 3: 0.387 usec per loop
>>> python3 -m timeit -s 'iterable = ["a", "b", "c"]' '[x fo...
What does send() do in Ruby?
..., those lines are equivalent:
1.send '+', 2
1.+(2)
1 + 2
Note that send bypasses visibility checks, so that you can call private methods, too (useful for unit testing).
If there is really no variable before send, that means that the global Object is used:
send :to_s # "main"
send :class ...
What are the new documentation commands available in Xcode 5? [closed]
...
Putting \\n doesn't create a new line.\n One way to create a newline is by making sure nothing is on that line. Not even a single space character!
@a Italic text @em with @@a or @@em.
@b Bold text with @@b.
@p Typewritter font @c with @@p or @@c.
Backslashes and must be escaped: C:\\foo.
...
MSTest copy file to test run folder
... Visual Studio (i.e. my extra files in their structure were found and used by tests) because I had created a TestSettings file for another reason long ago (which has Enable deployment unchecked), but not when TeamCity ran mstest to run tests because I hadn't specified that the TestSettings file shou...
Set Colorbar Range in matplotlib
... Why is this answer better than the one using plt.clim posted by @Amro ?
– Alex Lamson
Oct 22 '18 at 20:26
...