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What is the purpose of Node.js module.exports and how do you use it?
....exports is the object that's actually returned as the result of a require call.
The exports variable is initially set to that same object (i.e. it's a shorthand "alias"), so in the module code you would usually write something like this:
let myFunc1 = function() { ... };
let myFunc2 = function() ...
Changing element style attribute dynamically using JavaScript
... answered Mar 4 '11 at 8:55
David HedlundDavid Hedlund
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How can I generate an MD5 hash?
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You need java.security.MessageDigest.
Call MessageDigest.getInstance("MD5") to get a MD5 instance of MessageDigest you can use.
The compute the hash by doing one of:
Feed the entire input as a byte[] and calculate the hash in one operation with md.digest(bytes...
How do I attach events to dynamic HTML elements with jQuery? [duplicate]
...or all a tags with 'myclass' in the body, whether already present or dynamically added later.
The body tag is used here as the example had no closer static surrounding tag, but any parent tag that exists when the .on method call occurs will work. For instance a ul tag for a list which will have dyn...
How to kill an Android activity when leaving it so that it cannot be accessed from the back button?
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You just need to call finish()
Intent intent = new Intent(this, NextActivity.class);
startActivity(intent);
finish();
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What is this weird colon-member (“ : ”) syntax in the constructor?
...f initialisation matters. It's a shame it has such a stupid fake function call syntax.
– Martin Beckett
Nov 10 '09 at 23:50
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C++ Best way to get integer division and remainder
...mbined division & mod. I compiled these with gcc -O3, I had to add the call to doNothing to stop the compiler from optimising everything out (output would be 0 for the division + mod solution).
Take it with a grain of salt:
#include <stdio.h>
#include <sys/time.h>
#include <stdl...
What is the difference between SAX and DOM?
... part in memory at any time and you "sniff" the XML stream by implementing callback code for events like tagStarted() etc. It uses almost no memory, but you can't do "DOM" stuff, like use xpath or traverse trees.
DOM (Document Object Model): You load the whole thing into memory - it's a massive mem...
mysqldump data only
...db: if you are using --databases ... option
--compact: if you want to get rid of extra comments
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Static Initialization Blocks
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The non-static block:
{
// Do Something...
}
Gets called every time an instance of the class is constructed. The static block only gets called once, when the class itself is initialized, no matter how many objects of that type you create.
Example:
public class Test {
...