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Understanding Magento Block and Block Type
...dName = 'mymodule'
app>local>namespace>modulename>Block>hello.php
in hello.php you created a function
class namespace_modulename_Block_Data extends Mage_Core_Block_Template
{
public function mydata()
{
$data = "Block is called";
return...
Blocks and yields in Ruby
... the block. In 1.8, you'd get something like the following:
>> a = "Hello"
=> "Hello"
>> 1.times { |a| a = "Goodbye" }
=> 1
>> a
=> "Goodbye"
Whereas 1.9 would give you:
>> a = "Hello"
=> "Hello"
>> 1.times { |a| a = "Goodbye" }
=> 1
>> a
=> ...
What is the difference between '>' and a space in CSS selectors?
... #FFBA00 ;
}
<body>
<div>
<div>
<span>Hello...</span>
<p><span>Hello!</span></p>
</div>
<span>World!</span>
</div>
</body>
This one just selects the <span>Hello...</span&g...
Check whether variable is number or string in JavaScript
...with literal notation, and not constructors, you can use typeof:.
typeof "Hello World"; // string
typeof 123; // number
If you're creating numbers and strings via a constructor, such as var foo = new String("foo"), you should keep in mind that typeof may return object for foo.
Perhaps...
mkdir's “-p” option
...ectories as needed
Use case example: Assume I want to create directories hello/goodbye but none exist:
$mkdir hello/goodbye
mkdir:cannot create directory 'hello/goodbye': No such file or directory
$mkdir -p hello/goodbye
$
-p created both, hello and goodbye
This means that the command will cre...
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
...oid Main(string[] args)
{
string[] test = new string[3];
test[0]= "hello1";
test[1]= "hello2";
test[2]= "hello3";
for (int i = 0; i <= 3; i++)
{
Console.WriteLine(test[i].ToString());
}
}
Result will be:
hello1
hello2
hello3
Unhandled Exception: System.Ind...
How to check if a string “StartsWith” another string?
... and JavaScript engines that already have it), you can use it like this:
"Hello World!".startsWith("He"); // true
var haystack = "Hello world";
var prefix = 'orl';
haystack.startsWith(prefix); // false
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How to copy data to clipboard in C#
How can I copy a string (e.g "hello") to the System Clipboard in C#, so next time I press CTRL+V I'll get "hello"?
5 Answ...
Get url parameters from a string in .NET
...a bunch of malformed URLs however. It might break on some/all of these:
hello.html?
hello.html?valuelesskey
hello.html?key=value=hi
hello.html?hi=value?&b=c
etc
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...
Operator overloading in Java
...mming languages) doesn't respect this common mathematical notation.
a := "hello";
b := "world";
c := (a + b = b + a);
or in Java:
String a = "hello";
String b = "world";
boolean c = (a + b).equals(b + a);
Extra:
Notice how in Java equality and identity are confused.
The == (equality) symbol me...