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How to initialize an array in Java?
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When you create an array of size 10 it allocated 10 slots but from 0 to 9.
This for loop might help you see that a little better.
public class Array {
int[] data = new int[10];
/** Creates a new instance of an int Array */
public Array() {
fo...
For..In loops in JavaScript - key value pairs
I was wondering if there's a way to do something like a PHP foreach loop in JavaScript. The functionality I'm looking for is something like this PHP Snippet:
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What is the difference between application server and web server?
...gh most Web Servers have plugins to support scripting languages like Perl, PHP, ASP, JSP etc. through which these servers can generate dynamic HTTP content.
Most of the application servers have Web Server as integral part of them, that means App Server can do whatever Web Server is capable of. Addi...
Type erasure techniques
...plementations, or you could store the data elsewhere (e.g. in a separately allocated buffer), and just have the derived class provide the virtual function implementations, which take a void* that points to the data. If you store the data in a separate buffer, then you could use function pointers rat...
Spark java.lang.OutOfMemoryError: Java heap space
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I suffered from this issue a lot when using dynamic resource allocation. I had thought it would utilize my cluster resources to best fit the application.
But the truth is the dynamic resource allocation doesn't set the driver memory and keeps it to its default value, which is 1G.
I res...
How do I select an element in jQuery by using a variable for the ID?
... having an ID that starts with a number is not valid HTML:
ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").
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Is there an easy way to pickle a python function (or otherwise serialize its code)?
... source code file - hardly sophisticated.
– too much php
Aug 10 '09 at 9:05
1
You can find out th...
When should I use the HashSet type?
... HashSet<string> of all the valid commands, so whenever I hit a @xxx token in the lexer, I use validCommands.Contains(tokenText) as my O(1) validity check. I really don't care about anything except existence of the command in the set of valid commands. Lets look at the alternatives I faced:
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How to monitor the memory usage of Node.js?
..., heapTotal: 11803648, heapUsed: 4530208 }
> var a = new Array(1e7); // Allocate memory for 10m items in an array
undefined
> process.memoryUsage(); // Memory after allocating so many items
{ rss: 102535168, heapTotal: 91823104, heapUsed: 85246576 }
> a = null; // Allow the a...
git diff two files on same branch, same commit
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You don't need git for that, just use diff fileA.php fileB.php (or vimdiff if you want side by side comparison)
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