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Static Block in Java [duplicate]
...ecuted when the class is loaded (or initialized, to be precise, but you usually don't notice the difference).
It can be thought of as a "class constructor".
Note that there are also instance initializers, which look the same, except that they don't have the static keyword. Those are run in additio...
How to break out of jQuery each Loop
...k a $.each or $(selector).each loop, you have to return false in the loop callback.
Returning true skips to the next iteration, equivalent to a continue in a normal loop.
$.each(array, function(key, value) {
if(value === "foo") {
return false; // breaks
}
});
// or
$(selector)....
How can I add a class to a DOM element in JavaScript?
... This is not a good solution as this approach does not work on all browsers. setAttribute is supported by only 60% of browsers in use today. caniuse.com/#search=setAttribute
– Ragas
Feb 2 at 14:32
...
How to pass objects to functions in C++?
...ne whether to pass by const reference or not.)
Passing by pointer is virtually never advised. Optional parameters are best expressed as a std::optional (boost::optional for older std libs), and aliasing is done fine by reference.
C++11's move semantics make passing and returning by value much more ...
Pipe to/from the clipboard in Bash script
... Linux user who wants to put stuff in the X Windows primary clipboard. Usually, the clipboard you want to talk to has a utility that lets you talk to it.
In the case of X, there's xclip (and others). xclip -selection c will send data to the clipboard that works with Ctrl + C, Ctrl + V in most appl...
How do I get the number of days between two dates in JavaScript?
... var hours = minutes*60;
var days = hours*24;
var foo_date1 = getDateFromFormat("02/10/2009", "M/d/y");
var foo_date2 = getDateFromFormat("02/12/2009", "M/d/y");
var diff_date = Math.round((foo_date2 - foo_date1)/days);
alert("Diff date i...
emacs/elisp: What is the hash (pound, number sign, octothorp) symbol used for?
... printed is a description (but cannot be read). For example:
#<buffer foo.txt>
It is also used in constructs by the reader to represent circular structures. See the docs for Read Syntax for Circular Objects.
And then you have its use for denoting the base for integers, e.g. #x2c -> 44...
How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
In a recent interview, I was asked a really strange question. The interviewer asked me how can I compute 1+2+3+...+1000 just using compiler features. This means that I am not allowed to write a program and execute it, but I should just write a program that could drive the compiler to compute this su...
How to output MySQL query results in CSV format?
...you want to write output to your local machine from a remote server (especially a hosted or virtualize machine such as Heroku or Amazon RDS), this solution is not suitable.
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Difference between console.log() and console.debug()?
...e.log.apply(this, arguments);
};
console.debugging = true;
console.debug('Foo', {age:41, name:'Jhon Doe'});
Foo&blacktriangleright; {age: 41, name: "Jhon Doe"}
console.debugging = false;
console.debug('Foo', {age:26, name:'Jane Doe'});
No output
However I havent figured a way to c...