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Easiest way to check for an index or a key in an array?
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To check if the element is set (applies to both indexed and associative array)
[ ${array[key]+abc} ] && echo "exists"
Basically what ${array[key]+abc} does is
if array[key] is set, return abc
if array[key] is not set, return nothing
Ref...
Java 8 Stream and operation on arrays
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Find size of an array in Perl
...array, and of the first character in a substring" (perldoc perlvar). It's set to 0 by default, and setting it to anything other than 0 is highly discouraged.
– Keith Thompson
Sep 13 '11 at 18:52
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Python Requests throwing SSLError
...tificate.
Like @dirk mentioned in a previous comment, the quickest fix is setting verify=False:
requests.get('https://example.com', verify=False)
Please note that this will cause the certificate not to be verified. This will expose your application to security risks, such as man-in-the-middle at...
Clear form field after select for jQuery UI Autocomplete
... Let me just add that once you return false you no longer need to set the value yourself (i.e. no need for $(this).val('');)
– Uri
Sep 7 '11 at 10:06
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How to make a python, command-line program autocomplete arbitrary things NOT interpreter
I am aware of how to setup autocompletion of python objects in the python interpreter (on unix).
8 Answers
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Java String new line
...rator()
Why to use %n, because on each OS, new line refers to a different set of character(s);
Unix and modern Mac's : LF (\n)
Windows : CR LF (\r\n)
Older Macintosh Systems : CR (\r)
LF is the acronym of Line Feed and CR is the acronym of Carriage Return. The es...
EditText maxLines not working - user can still input more lines than set
..."1"
/>
You just need to make sure you have the attribute "inputType" set. It doesn't work without this line.
android:inputType="text"
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Font Awesome icon inside text input element
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Setting z-index: 1 will make the underlying input catch the focus when you click on the icon - something you may want for instance when adding a datepicker.
– romaricdrigon
Sep 27 '16 at...
Undo git stash pop that results in merge conflict
...ed state with the following steps:
To unstage the merge conflicts: git reset HEAD . (note the trailing dot)
To save the conflicted merge (just in case): git stash
To return to master: git checkout master
To pull latest changes: git fetch upstream; git merge upstream/master
To correct my new branch...