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How to avoid annoying error “declared and not used”
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That error is here to force you to write better code, and be sure to use everything you declare or import. It makes it easier to read code written by other people (you are always sure that all declared variables will be used), and...
How to resolve “must be an instance of string, string given” prior to PHP 7?
... the class string is expected, but you're giving it a (scalar) string. The error message may be funny, but it's not supposed to work to begin with. Given the dynamic typing system, this actually makes some sort of perverted sense.
You can only manually "type hint" scalar types:
function foo($strin...
Making git auto-commit
I'd like to use git to record all the changes to a file.
18 Answers
18
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How do I get the full path to a Perl script that is executing?
I have Perl script and need to determine the full path and filename of the script during execution. I discovered that depending on how you call the script $0 varies and sometimes contains the fullpath+filename and sometimes just filename . Because the working directory can vary as well I can't ...
Default template arguments for function templates
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The following code fails to compile, with errors like error: invalid conversion from ‘int’ to ‘int*’, any idea why: ` #include <array> #include <algorithm> #include <functional> template<typename Iterator, typename Comp ...
Build Error - missing required architecture i386 in file
I'm getting this error when building my iPhone application:
16 Answers
16
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jQuery remove all list items from an unordered list
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$("ul").empty() works fine. Is there some other error?
$('input').click(function() {
$('ul').empty()
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul>
<li>test</li>
<li>te...
Node.js create folder or use existing
...y. Callback is called after path is created or if path did already exists. Error err is set if mkdirp failed to create directory path.
var mkdirp = require('mkdirp');
mkdirp('/tmp/some/path/foo', function(err) {
// path exists unless there was an error
});
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Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio
...in aggregates, but also modify the handling of divide by zero and overflow errors. This causes this solution to be a "no go" for me.
– Frédéric
Jun 4 '15 at 14:53
3
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