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JavaScript: clone a function
...: "You shall not pass!" }); // this object is binded
newFunc.apply({ msg: "hello world" }); //logs "You shall not pass!" instead
Bound function object, instanceof treats newFunc/oldFunc as the same. Credit to @Christopher
(new newFunc()) instanceof oldFunc; //gives true
(new oldFunc()) instanceof...
What is the difference between IEqualityComparer and IEquatable?
...comparisons. Note that a IEqualityComparer<String> which considers "hello" equal to both "Hello" and "hElLo" must consider "Hello" and "hElLo" equal to each other, but for most comparison methods that wouldn't be a problem.
– supercat
Mar 19 '13 at 20:03...
Disable output buffering
...(self.stream, attr)
import sys
sys.stdout = Unbuffered(sys.stdout)
print 'Hello'
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Determine path of the executing script
...ing",other.name,"from",script.name))
source(other.name)
other.R:
print("hello")
output:
burner@firefighter:~$ main.R
[1] "Sourcing /home/burner/bin/other.R from /home/burner/bin/main.R"
[1] "hello"
burner@firefighter:~$ bin/main.R
[1] "Sourcing bin/other.R from bin/main.R"
[1] "hello"
burner@f...
Check if value exists in Postgres array
...ll throw error: ERROR: syntax error at or near "any"
select 1 where any('{hello}'::text[]) = 'hello';
Whereas below example works fine
select 1 where 'hello' = any('{hello}'::text[]);
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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...
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...
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...
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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