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How can I implode an array while skipping empty array items?
...
You can use array_filter():
If no callback is supplied, all entries of input equal to FALSE (see converting to boolean) will be removed.
implode('-', array_filter($array));
Obviously this will not work if you have 0 (or any other value ...
Why doesn't 'ref' and 'out' support polymorphism?
... or move to a dynamic typing approach (as the very first OOP language, Smalltalk, did), or move to immutable (single-assignment) data, like functional languages do (under immutability, you can support covariance, and also avoid other related puzzles such as the fact that you cannot have Square subcl...
Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
... You can open the storyboard as a source file and search
with the regex <label(?!.*preferredMaxLayoutWidth) to find labels that
omit a preferredMaxLayoutWidth attribute/value. If you add in
preferredMaxLayoutWidth="0" on such lines, it is the same as marking
explicit and setting the value...
Split Strings into words with multiple word boundary delimiters
...the text of all groups in the pattern are also returned as part of the resulting list. If maxsplit is nonzero, at most maxsplit splits occur, and the remainder of the string is returned as the final element of the list. (Incompatibility note: in the original Python 1.5 release, maxsplit was ignored....
Android Studio says “cannot resolve symbol” but project compiles
...sted so much time on this issue. Why was this answer not a top search result? Thank you so much!
– Eric Cochran
Jun 29 '14 at 0:34
1
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How do I pass an extra parameter to the callback function in Javascript .filter() method?
...word to compare against and return a function which will then be used as filter/callback function:
function startsWith(wordToCompare) {
return function(element) {
return element.indexOf(wordToCompare) === 0;
}
}
addressBook.filter(startsWith(wordToCompare));
Another option would ...
How do I get the difference between two Dates in JavaScript?
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The "pitfalls" are actually defaults based on the language specification. The subtraction operator - coerces the arguments to number, so the Date returns its time value. The + operator is overloaded, so might do addition, coercion to number or concatenation....
Entity Framework Timeouts
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There is a known bug with specifying default command timeout within the EF connection string.
http://bugs.mysql.com/bug.php?id=56806
Remove the value from the connection string and set it on the data context object itself. This will work if you remove the conflicti...
How to get the full url in Express?
...x_forwarded_for;
proxy_pass http://myapp:8080;
}
}
apache:
<VirtualHost myhost:80>
ServerName myhost
DocumentRoot /path/to/myapp/public
ProxyPass / http://myapp:8080/
ProxyPassReverse / http://myapp:8080/
</VirtualHost>
...
How to get a key in a JavaScript object by its value?
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If Multiple keys have Same value use filter instead of find function getKeyByValue(object, value) { return Object.keys(object).filter(key => object[key] === value); }
– saketh
May 28 '19...