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How do I implement a callback in PHP?
...d, the string must contain the fully-qualified name. E.g. ['Vendor\Package\Foo', 'method']
call_user_func does not support passing non-objects by reference, so you can either use call_user_func_array or, in later PHP versions, save the callback to a var and use the direct syntax: $cb();
Objects with...
Exit Shell Script Based on Process Exit Code
...e is the only way to start a shell script. You can always use things like foo || handle_error $? if you need to actually examine exit statuses.
– Davis Herring
Sep 23 '17 at 5:29
...
Why should a Java class implement comparable?
...s with Guava's ComparisonChain - then you can say
public int compareTo(Foo that) {
return ComparisonChain.start()
.compare(lastName, that.lastName)
.compare(firstName, that.firstName)
.compare(zipCode, that.zipCode)
.result();
}
instead of
public ...
Can you use if/else conditions in CSS?
...ks something like this:
p {
background-position: <?php echo (@$_GET['foo'] == 'bar')? "150" : "4"; ?>px 8px;
}
In this case, you will however have a performance impact, since caching such a stylesheet will be difficult.
...
What is the difference between an abstract function and a virtual function?
... virtual method, you can always refer to the parent method by calling base.Foo(...)
– Brann
Jul 5 '11 at 0:45
198
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How do I use Django templates without the rest of Django?
...something like this:
from django.conf import settings
settings.configure (FOO='bar') # Your settings go here
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Proper way to return JSON using node or Express
...tly for you and returns the response in JSON format.
Example:
res.json({"foo": "bar"});
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Why is it said that “HTTP is a stateless protocol”?
...
Check out this article:- ecst.csuchico.edu/~amk/foo/advjava/notes/servlets/Cookies.html
– Rahul Tripathi
Nov 2 '12 at 17:31
19
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What's the easiest way to escape HTML in Python?
... html.escape(t, quote=False); s = f'<a href="about.html" class="{t}">foo</a>'
– maxschlepzig
Apr 26 '19 at 9:32
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When should I use Arrow functions in ECMAScript 6?
... be named1. This has two benefits: (1) It is less awkward to writefunction foo(){} than const foo = () => {} — in particular outside other function calls. (2) The function name shows in stack traces. While it would be tedious to name every internal callback, naming all the public functions is p...