1) $() function is actually a factory for jQuery object. It is the object encapsulates zero or more DOM dlements.
2) .addClass() and .removeClass()
They are fairly self-explanatory.
Its only parameter is the name of the class to add or remove.
Here are two samples.
Sample 1.
$(document).ready( function () { $( '.poem' ).addClass( 'emphasized' ); });</div> It is the function to add class 'emphasized' on the class 'poem' . Sample 2. <div class = "scode" >$(document).ready( function () { $( 'span:contains(language)' ).addClass( 'emphasized' ); }); |
This sample try to find the span which contains “language”, and add a class ’emphasized’ on these span.