JQuery () parameter

An alias for jquery is $, and there's no doubt about it.

$ ("div"), get all the DIV elements, no problem;

$ ("div", $ ("Div. SomeClass")), this is a more general, but I miss the method;

JQuery (Expression,[context])

expression, as a selector;

Context, optional, if not set, the current DOM as the context, or, if set, the result set of the selector as an expression.

The following code is the code in the jquery combat, meaning to look for the first div in the parent element of this, and then use this div as the 'div' context to get into the div ' Div'

$ (' div ', $ (this). Parents (' Div:first '))