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Get class list for element with jQuery
..., but this answer fails to account for that. Try pasting $('<div class="foo bar baz">').attr("class").split(' ') into your browser console (there's a tab character in there); you'll get ["foo", "bar baz"] instead of the correct class list of ["foo", "bar", "baz"].
– Mark ...
How do I encode/decode HTML entities in Ruby?
...nd has a huge contributing community.
Samples:
a = Nokogiri::HTML.parse "foo&nbsp;b&auml;r"
a.text
=> "foo bär"
or
a = Nokogiri::HTML.parse "&iexcl;I&#39;m highly&nbsp;annoyed with character references!"
a.text
=> "¡I'm highly annoyed with character references...
How can I check for “undefined” in JavaScript? [duplicate]
...e the in operator for a more robust check.
"theFu" in window; // true
"theFoo" in window; // false
If you are interested in knowing whether the variable hasn't been declared or has the value undefined, then use the typeof operator, which is guaranteed to return a string:
if (typeof myVar !== 'un...
What is the difference between `new Object()` and object literal notation?
...this.p);};
Both ways allow creation of instances of Obj like this:
var foo = new Obj( "hello" );
However, with the literal way, you carry a copy of the sayHello method within each instance of your objects. Whereas, with the prototype way, the method is defined in the object prototype and shar...
Traverse all the Nodes of a JSON Object Tree with JavaScript
...tive task, you could do something like that:
//your object
var o = {
foo:"bar",
arr:[1,2,3],
subo: {
foo2:"bar2"
}
};
//called with every property and its value
function process(key,value) {
console.log(key + " : "+value);
}
function traverse(o,func) {
for (var i ...
Why does Pycharm's inspector complain about “d = {}”?
...o initialize dictionaries with single operation
d = {
'a': 12,
'b': 'foo',
'c': 'bar'
}
instead of many lines like
d = dict()
d['a'] = 12
d['b'] = ....
in the end I ended up with this:
d = dict()
d.update({
'a': 12,
'b': 'foo',
'c': 'bar'
})
Pycharm is not complaining on this
...
Package objects
...when you use the API defined by the package. Here is an example:
// file: foo/bar/package.scala
package foo
package object bar {
// package wide constants:
def BarVersionString = "1.0"
// or type aliases
type StringMap[+T] = Map[String,T]
// can be used to emulate a package wide impo...
Checking for NULL pointer in C/C++ [closed]
...
if (foo) is clear enough. Use it.
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A python class that acts like dict
...ode__(self):
return unicode(repr(self.__dict__))
o = Mapping()
o.foo = "bar"
o['lumberjack'] = 'foo'
o.update({'a': 'b'}, c=44)
print 'lumberjack' in o
print o
In [187]: run mapping.py
True
{'a': 'b', 'lumberjack': 'foo', 'foo': 'bar', 'c': 44}
...
How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
..." is a string
1 == "1": true // "1" gets casted to an integer, which is 1
"foo" === "foo": true // both operands are strings and have the same value
Warning: two instances of the same class with equivalent members do NOT match the === operator. Example:
$a = new stdClass();
$a->foo = "bar";
$b ...