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nodeJs callbacks simple example
can any one give me a a simple example of nodeJs callbacks, I have already searched for the same on many websites but not able to understand it properly, Please give me a simple example.
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In PHP, can you instantiate an object and call a method on the same line?
...) {
return new Test($param);
}
And now, it becomes possible to use a one-liner, like you asked -- only thing is you are calling the function, thus not using new :
$a = Test(10)->myMethod();
var_dump($a);
And it works : here, I'm getting :
int 20
as output.
And, better, you can put s...
How to write an inline IF statement in JavaScript?
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You don't necessarily need jQuery. JavaScript alone will do this.
var a = 2;
var b = 3;
var c = ((a < b) ? 'minor' : 'major');
The c variable will be minor if the value is true, and major if the value is false.
This is known as a Conditional (ternary) Operato...
deciding among subprocess, multiprocessing, and thread in Python?
...hreads are notoriously subtle, and, with CPython, you are often limited to one core, with them (even though, as noted in one of the comments, the Global Interpreter Lock (GIL) can be released in C code called from Python code).
I believe that most of the functions of the three modules you cite can ...
How do you log all events fired by an element in jQuery?
...no way to display custom events, for example if a plugin fires some custom ones?
– Daniel T.
Sep 16 '11 at 2:46
2
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In Ruby, is there an Array method that combines 'select' and 'map'?
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You can use reduce for this, which requires only one pass:
[1,1,1,2,3,4].reduce([]) { |a, n| a.push(n*3) if n==1; a }
=> [3, 3, 3]
In other words, initialize the state to be what you want (in our case, an empty list to fill: []), then always make sure to return this ...
Select unique or distinct values from a list in UNIX shell script
...at uniq seams to process only adjacent lines (at least by default) meaning one may sort input before feeding uniq.
– Stphane
Feb 19 '16 at 0:28
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How do I keep two side-by-side divs the same height?
... by side. I'd like the height of them to be the same, and stay the same if one of them resizes. I can't figure this one out though. Ideas?
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Cookies on localhost with explicit domain
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Not sure why everyone is +1'ing this, I set the domain of the cookie to null or false or empty string and it still doesn't save if on localhost.
– Justin
Sep 6 '11 at 14:34
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Equals(=) vs. LIKE
...nded to the length of the longer
string by concatenation on the right of one or more pad
characters, where the pad character is chosen based on CS. If
CS has the NO PAD attribute, then the pad character is an
implementation-dependent character different from any
character in the characte...