Class ('.class')S2C Home « Selectors « Class ('.class')

Class selector.

Shorthand version  $('.class')

Description

The ('.class') selector, selects all elements that have the specified class.

  • An element can have multiple classes but we only need to match on one of them.
  • This method calls JavaScript's getElementsByClassName() function 'under the hood' to return the appropriate elements if the browser supports it.

Syntax

Signature Description
jQuery('.class')Class match

Parameters

Parameter Description
classA class value to search for.
An element can have multiple classes but we only need to match on one of them.

Return

N/A.

Class ('.class') ExamplesTop

Selects all elements that have the specified class.

The following example will select any element with a class of 'backGreen' and change the background color to green.


$(function(){
  $('#btn1').on('click', function() {
    $('.backGreen').css('backgroundColor', 'green');
  });
}); 


Press the button below to action the above code:

The following example will select any element with a class of 'js' (code examples) and change the background colour to yellow.




$(function(){
  $('#btn2').on('click', function() {
    $('.js').css('backgroundColor', 'yellow');
  });
}); 


Press the button below to action the above code:

The following example will select any element with a class of 'copyright' (copyright title in bottom bar) and change the colour to orange.




$(function(){
  $('#btn3').on('click', function() {
    $('.copyright').css('color', 'orange');
  });
}); 


Press the button below to action the above code:

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