What difference does the space make.

Example 1: Without a space only divs of class 'class' will be selected.


//divs with class class
$('div.class')


Second Example: The space will select all elements with class 'class' that are children of divs.


//all children, level irrelevant
$('div .class')


Third Example: Select direct children wich class class only.


//direct children only
$('div > .class')