jQuery Get & Set Width of an Element

jQuery Set & Get width and height Of Html Elements

jQuery set and get width and height of HTML elements; In this tutorial, you will learn how to dynamically set/change or get the width and height of selected html elements like div, span, p, button, tag etc.

How to dynamically set and get the height and width of HTML element

Use jQuery width() and height() method to change/set and get html elements ( div, span, p, button, tag ) width and height.

jQuery Width() method

jQuery offers various method to manipulating html elements. The jQuery width() methods get or set the width of the selected html elements.

Syntax width() Method

Using the above syntax Get width of elements

You can use this jquery width() syntax for Set the width of elements.

Example for jQuery Width() method

This example will demostrate, you how to set or get the width of selected HTML elements using the jQuery width () method.

     #div_box_body    
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam eu sem tempor, varius quam at, luctus dui. Mauris magna metus, dapibus nec turpis vel, semper malesuada ante. Vestibulum id metus ac nisl bibendum scelerisque non non purus. Suspendisse varius nibh non aliquet sagittis. In tincidunt orci sit amet elementum vestibulum. Vivamus fermentum in arcu in aliquam. Quisque aliquam porta odio in fringilla non purus nisld Dapibus nec turpis vel, semper malesuada ant.
 
Output
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam eu sem tempor, varius quam at, luctus dui. Mauris magna metus, dapibus nec turpis vel, semper malesuada ante.
In the above jQuery width() method example, First of all When you click on button that get selected html elements width and after that we have set width of the selected html elements and showing the current width of the box body.
jQuery Height() method
jQuery offers various method to manipulating html elements. The jQuery height() methods get or set the height of the selected html elements.

Syntax height() Method
Using the above syntax Get heigthof elements
You can use this jquery height() syntax for Set the height of elements.
Example for jQuery Height() method
This example will demostrate, you how to set or get the height of selected HTML elements using the jQuery height() method.
     #div_box_height    
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam eu sem tempor, varius quam at, luctus dui. Mauris magna metus, dapibus nec turpis vel, semper malesuada ante. Vestibulum id metus ac nisl bibendum scelerisque non non purus. Suspendisse varius nibh non aliquet sagittis. In tincidunt orci sit amet elementum vestibulum. Vivamus fermentum in arcu in aliquam. Quisque aliquam porta odio in fringilla non purus nisld Dapibus nec turpis vel, semper malesuada ant.
 
Output
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam eu sem tempor, varius quam at, luctus dui. Mauris magna metus, dapibus nec turpis vel, semper malesuada ante.
In the above jQuery height() method example, First of all When you click on button that get selected html elements height and after that we have set height of the selected html elements and showing the current height of the box body.
Recommended jQuery Tutorial

  
How to Get & Set Data Attribute Value From Elements jQuery
  
jQuery Remove Attribute and Disabled Attribute From Element
  
jQuery | Event MouseUp By Example
  
Event jQuery Mouseleave By Example
  
jQuery Event Mouseenter Example
  
Event jQuery MouseOver & MouseOut By Example
  
keyup jquery event example
  
Jquery Click Event Method with E.g.
  
Event jQuery. Blur By Example
  
jQuery form submit event with example
  
keydown function jQuery
  
List of jQuery Events Handling Methods with examples
  
Jquery Selector by .class | name | #id | Elements
  
How to Get the Current Page URL in jQuery
  
jQuery Ajax Get() Method Example
  
get radio button checked value jquery by id, name, class
  
jQuery Set & Get innerWidth & innerHeight Of Html Elements
  
jQuery Get Data Text, Id, Attribute Value By Example
  
Set data attribute value jquery
  
select multiple class in jquery
  
How to Remove Attribute Of Html Elements In jQuery
  
How to Checked Unchecked Checkbox Using jQuery
  
jQuery removeClass & addClass On Button Click By E.g.
  
To Remove whitespace From String using jQuery
  
jQuery Ajax Post Method Example
  
jQuery Ajax Get Method Example
  
To Load/Render html Page in div Using jQuery Ajax $.load
  
jQuery Sibling Methods – To Find Siblings Elements
  
jQuery Find Siblings Elements with Class, id

Author Admin
My name is Devendra Dode. I am a full-stack developer, entrepreneur, and owner of Tutsmake.com. I like writing tutorials and tips that can help other developers. I share tutorials of PHP, Python, Javascript, JQuery, Laravel, Livewire, Codeigniter, Node JS, Express JS, Vue JS, Angular JS, React Js, MySQL, MongoDB, REST APIs, Windows, Xampp, Linux, Ubuntu, Amazon AWS, Composer, SEO, WordPress, SSL and Bootstrap from a starting stage. As well as demo example.
Источник
.height()
Get the current computed height for the first element in the set of matched elements or set the height of every matched element.
Contents:
.height() Returns: Number 
Description: Get the current computed height for the first element in the set of matched elements.
version added: 1.0 .height() 
The difference between .css( "height" ) and .height() is that the latter returns a unit-less pixel value (for example, 400 ) while the former returns a value with units intact (for example, 400px ). The .height() method is recommended when an element's height needs to be used in a mathematical calculation.
 
This method is also able to find the height of the window and document.
// Returns height of browser viewport
$( window ).height();
 
// Returns height of HTML document
$( document ).height();
 
Note that .height() will always return the content height, regardless of the value of the CSS box-sizing property. As of jQuery 1.8, this may require retrieving the CSS height plus box-sizing property and then subtracting any potential border and padding on each element when the element has box-sizing: border-box . To avoid this penalty, use .css( "height" ) rather than .height() .
 
Note: Although style and script tags will report a value for .width() or height() when absolutely positioned and given display:block , it is strongly discouraged to call those methods on these tags. In addition to being a bad practice, the results may also prove unreliable.
 
Additional Notes:
 
 
The number returned by dimensions-related APIs, including .height() , may be fractional in some cases. Code should not assume it is an integer. Also, dimensions may be incorrect when the page is zoomed by the user; browsers do not expose an API to detect this condition.
 
The value reported by .height() is not guaranteed to be accurate when the element or its parent is hidden. To get an accurate value, ensure the element is visible before using .height() . jQuery will attempt to temporarily show and then re-hide an element in order to measure its dimensions, but this is unreliable and (even when accurate) can significantly impact page performance. This show-and-rehide measurement feature may be removed in a future version of jQuery.
 
 
Example:
 
Show various heights. Note the values are from the iframe so might be smaller than you expected. The yellow highlight shows the iframe body.
 
html>
html lang="en">
head>
 meta charset="utf-8">
 title>height demo title>
 style> 
 body 
 background: yellow;
 >
 button 
 font-size: 12px;
 margin: 2px;
 >
 p 
 width: 150px;
 border: 1px red solid;
 >
 div 
 color: red;
 font-weight: bold;
 >
 style>
 script src="https://code.jquery.com/jquery-3.7.0.js"> script>
 head>
body>
 
button id="getp">Get Paragraph Height button>
button id="getd">Get Document Height button>
button id="getw">Get Window Height button>
 
div>  div>
p>
 Sample paragraph to test height
 p>
 
script> 
function showHeight( element, height ) 
 $( "div" ).text( "The height for the " + element + " is " + height + "px." );
>
$( "#getp" ).on( "click", function( ) 
 showHeight( "paragraph", $( "p" ).height() );
>);
$( "#getd" ).on( "click", function( ) 
 showHeight( "document", $( document ).height() );
>);
$( "#getw" ).on( "click", function( ) 
 showHeight( "window", $( window ).height() );
>);
 script>
 
 body>
 html>
 
Demo:
 
.height( value ) Returns: jQuery 
 
Description: Set the CSS height of every matched element.
 
version added: 1.0 .height( value ) 
 
An integer representing the number of pixels, or an integer with an optional unit of measure appended (as a string).
 
version added: 1.4.1 .height( function ) 
 
A function returning the height to set. Receives the index position of the element in the set and the old height as arguments. Within the function, this refers to the current element in the set.
 
When calling .height(value) , the value can be either a string (number and unit) or a number. If only a number is provided for the value, jQuery assumes a pixel unit. If a string is provided, however, a valid CSS measurement must be provided for the height (such as 100px , 50% , or auto ). Note that in modern browsers, the CSS height property does not include padding, border, or margin.
 
If no explicit unit was specified (like 'em' or '%') then "px" is concatenated to the value.
 
Note that .height(value) sets the content height of the box regardless of the value of the CSS box-sizing property.
 
Example:
 
To set the height of each div on click to 30px plus a color change.
 
Источник
 
Работа с высотой элемента
 
Функции возвращают высоту элемента. Кроме этого, с помощью height(), можно установить новое значение высоты. Имеется несколько вариантов использования функций:
 
все три функции возвращают высоту первого из выбранных элементов страницы. Отличия у функций следующие:
 
 
height() — высота элемента без учета отступов и толщины рамки. 
innerHeight() — высота элемента с учетом размера внутренних отступов (padding). 
outerHeight(includeMargin) — высота элемента с учетом внутренних отступов, рамки (border-width) и при необходимости внешних отступов (margin). 
 
устанавливает новое значение высоты элементов, равное значению, которое вернет пользовательская функция. Функция вызывается отдельно, для каждого из выбранных элементов. При вызове ей передаются следующие параметры: index — позиция элемента в наборе, value — текущее значение высоты элемента.
 
 
 
$("div.content").height()
 
возвратит высоту первого div-элемента с классом content.
 
 
 
$(document).height()
 
возвратит высоту всей страницы
 
 
 
$(".content").height(30)
 
устанавливает значение высоты в 30 пикселей всем элементам с классом content.
 
 
 
$("div.content").outerHeight()
 
возвратит высоту первого div-элемента с классом content. В значение высоты будут включены внутренние отступы и толщина рамок
 
 
 
$("div.content").outerHeight(true)
 
аналогично предыдущему примеру, но в значение высоты будут так же включены внешние отступы.
 
 
 
Замечание 1: использование функции .height() обычно удобнее, чем .css("height"), поскольку возвращаемое ей значение не содержит окончания "px". То есть в первом случае, вы получите 30, а во втором "30px".
 
Замечание 2: важно отметить, что используя метод .height(name) вы получите значения атрибута только первого элемента из всех выбранных. Если вам нужны значения всех элементов, то следует использовать конструкции типа .map() или .each().
 
В действии
 
Увеличим высоту всех элементов во второй колонке на 10 пикселей.
 
~lt~!DOCTYPE html~gt~ ~lt~html~gt~ ~lt~head~gt~ ~lt~script src="https://code.jquery.com/jquery-latest.js"~gt~~lt~/script~gt~ ~lt~style~gt~ ul < width:110px; float:left; >.item < width: 100px; height: 20px; float: left; margin: 1px; padding: 3px; background-color: #EEEEEE; list-style-type:none; >~lt~/style~gt~ ~lt~/head~gt~ ~lt~body~gt~ ~lt~ul ~gt~ ~lt~li style="height:15px"~gt~ Высоко ~lt~/li ~gt~ ~lt~li style="height:18px"~gt~ Быстро ~lt~/li ~gt~ ~lt~li style="height:21px"~gt~ Сильно ~lt~/li ~gt~ ~lt~/ul~gt~ ~lt~ul ~gt~ ~lt~li style="height:15px"~gt~ Выше ~lt~/li ~gt~ ~lt~li style="height:18px"~gt~ Быстрее ~lt~/li ~gt~ ~lt~li style="height:21px"~gt~ Сильнее ~lt~/li ~gt~ ~lt~/ul~gt~ ~lt~script~gt~ $("#list2 .item").height(function(i,val)< return val+10; >); ~lt~/script~gt~ ~lt~/body~gt~ ~lt~/html~gt~
 
Ссылки
 
 
высота элементов на странице
 
установить высоту
 
изменить высоту элемента
 
установить высоту элемента
 
присвоить значение высоте элемента
 
.height()
 
height()
 
 
Источник
 
Читайте также:  Python and eclipse windows