使用 JavaScript 获取 HTML 元素的宽度和高度

有几种方法可以检索页面上 HTML 元素的宽度和高度。但是，重要的是要知道这些度量是由什么组成的：内容、填充、边框和边距。

HTML中的盒子模型

在以下所有方法中，始终排除边距，并且始终将内容包含在高度和宽度计算中。

方法一

和只读属性返回一个包含边框、内边距和滚动条offsetHeight的值。如果元素被隐藏，则两个属性都将返回。offsetWidth 0

const htmlElement = document.getElementById('some-id')


htmlElement.offsetHeight
htmlElement.offsetWidth

来自MDN 网络文档

方法二

同样，clientHeight和clientWidth是只读属性。但是，返回值仅包括 padding。请注意，对于内联元素，这些属性返回0.

htmlElement.clientHeight
htmlElement.clientWidth

来自MDN 网络文档

方法三

另一种测量元素尺寸的方法是使用getBoundingClientRect(). 与其他 2 种方法相比，它的主要优点是它为您提供小数值，而不是将它们四舍五入为最接近的整数。

const elementDimensions = htmlElement.getBoundingClientRect()
elementDimensions.height
elementDimensions.width

它返回一个DOMRect类型的对象，其中包含元素的高度和宽度。和一样offset...，边框、填充和滚动条都包含在测量中。

来源：https ://dilshankelsen.com/get-width-height-of-html-element-using-javascript/

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How to Image Uploader with Preview || Html CSS JavaScript

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Creating a Responsive Blog with HTML, CSS, and JavaScript

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Personal Portfolio Website Using Html Css and Javascript

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In this tutorial we are going to make a personal Portfolio in this website there are six section Home, About, Services,Portfolio , Skills, and Contact the main features of this is dark/light mode function

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Display Current Time Using HTML,CSS And JavaScript

In this Display Current Time, we were Using HTML, CSS And JavaScript. We used the javascript inbuild function for a time, and to display, we used javascript DOM. To show the live time, we used javascript setInterval functions.

Also Read:- Bootstrap Progress Bar Percentage Using Jquery

For the responsive side, we used CSS media queries. Also, to make it more attractive, we used a background image with an opacity background.

Make it yours now by using it, downloading it, and please share it. we will design more elements for you.

Source Code

 

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Know Everything About HTML With HTML Experts

HTML stands for a hypertext markup language. For the designs to be displayed in web browser HTML is the markup language. Technologies like Cascading style sheets (CSS) and scripting languages such as JavaScript assist HTML. With the help of HTML websites and the web, designs are created. Html has a wide range of academic applications. HTML has a series of elements. HTML helps to display web content. Its elements tell the web how to display the contents.

The document component of HTML is known as an HTML element. HTML element helps in displaying the web pages. An HTML document is a mixture of text nodes and HTML elements.

Basics of HTML are-

The simple fundamental components oh HTML is

1. Head- the setup information for the program and web pages is carried in the head
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4. Comments- come up in between

Html versions timeline

1. HTML was created in 1990. Html is a program that is updated regularly. the timeline for the HTML versions is
2. HTML 2- November, 1995
3. HTML 3- January, 1997
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5. HTML 5- October, 2014; November, 2016; December, 2017

HTML draft version timelines are

1. October 1991
2. June 1992
3. November 1992
4. June 1993
5. November 1993
6. November 1994
7. April 1995
8. January 2008
9. HTML 5-
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   2012 candidate recommendation
   2014 proposed recommendation and recommendation

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