jQuery width() Method

jQuery width() method sets or returns the width of selected elements.

The width() method is useful when an element's width needs to be used in a mathematical calculation.

The width() method is also able to find the width of the window and the document.

Here is a syntax for width() method that return the width

$(selector).width();

Set the width

$(selector).width( value );

Parameter	Type	Description
value	String	Optional. Specifies the width in px, em, pt, etc. Default measurement is px

$(document).ready(function(){
  $("button").click(function(){
    alert($("p").width());
  });
});

$(document).ready(function(){
  $("button").click(function(){
    $("p").width("200px");
  });
});