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Array vs. Object efficiency in JavaScript
...an array, too:
var a3 = [];
a3[29938] = "a";
a3[32994] = "b";
It's basically an array with holes in it, because every array does have continous indexing. It's slower than arrays without holes. But iterating manually through the array is even slower (mostly).
This is an object:
var a3 = {};
a3[2...
Adding a UILabel to a UIToolbar
...her buttons are typically on the toolbar, spacers are placed on each side of the title button so it stays centered.
NSMutableArray *items = [[self.toolbar items] mutableCopy];
UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:n...
How to convert IPython notebooks to PDF and HTML?
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Here you have your IPython notebook(.ipynb) converted to both PDF(.pdf) & HTML(.html) formats.
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What does %~dp0 mean, and how does it work?
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Calling
for /?
in the command-line gives help about this syntax (which can be used outside FOR, too, this is just the place where help can be found).
In addition, substitution of FOR
variable references has been enhan...
Maven2 property that indicates the parent directory
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Try setting a property in each pom to find the main project directory.
In the parent:
<properties>
<main.basedir>${project.basedir}</main.basedir>
</properties>
In the children:
<properties>
<main.basedir>${proj...
What is the difference between “text” and new String(“text”)?
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@Braj: Are the headers for the 'Heap' & 'pool' in the table supposed to be reverse ?
– Rahul Kurup
Aug 8 '15 at 10:52
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What is an initialization block?
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First of all, there are two types of initialization blocks:
instance initialization blocks, and
static initialization blocks.
This code should illustrate the use of them and in which order they are executed:
public class Test {
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Setting Django up to use MySQL
I want to move away from PHP a little and learn Python. In order to do web development with Python I'll need a framework to help with templating and other things.
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Best way to include CSS? Why use @import?
... files. When you include them as <link tags you can use existing minify php/dotnet/java modules to do the minification.
So: use <link /> instead of @import.
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Java Serializable Object to Byte Array
...t entirely sure if this is the best practice, that's why I'm wondering.) Example: try(ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutput out = new ObjectOutputStream(bos)){ /*Do stuff*/ }catch(IOException e){/*suppress exception*/}. It also removes the need for the final clause an...