How to get dom elements in vue
This article mainly introduces the precautions for vue to obtain dom elements and the content of vue to obtain dom elements. Friends in need can refer to it
mounted(){
setTimeout(()=>{
this.contentToggle();
},1000)
},
methods:{
contentToggle(){
console.log(this.$refs.bodyFont.offsetHeight);
}
}If vue wants to obtain the height of dom elements, generally we all We can think of writing it in the mounted function, that is, getting it after the dom is loaded, but the result is not what we thought. We also thought of using a
this.$nextTick(()=>{
//函数
})to get it, but found that it is useless at all/. .
So a good way is to use a setTimeout timer. The time can be set to 0, but sometimes it takes effect and sometimes it does not take effect. It is safer to add a small time value, so that you can ensure that you get It must be after the dom is loaded. This principle applies to many value transfer problems in Vue. If you cannot get the passed value at the beginning, just use a setTimeout.
ps: VUE gets the DOM element content
Get the dom element through ref
On the vue official website, check the ref Explanation
ref is used to register reference information to an element or subcomponent. Reference information will be registered on the $refs object of the parent component. If used on a normal DOM element, the reference points to the DOM element; if used on a subcomponent, the reference points to the component instance
When v-for is used on an element or component, the reference information will be Array containing DOM nodes or component instances
For example, the effect I want to achieve now is to click on the li generated with v-for and get the value of the element.
First, I need to get the currently clicked li element, what we have to do is
1. Add a click event and ref attribute to the dom
<li class="sidebar-list" v-for="(item, index) in meunList" @click="setPageMenu(index)" ref="menuItem">
<router-link class="sidebar-a" :to="{ path: item.listLink }" >{{item.listTitle}}</router-link>
</li>2. Then use ref
setPageMenu(index) {
//这个是获取当前menuItem值，用index来区分当前元素是v-for 产生的数组中的第几个数
let getMenuText = this.$refs.menuItem[index].innerText;
}in the click event method. The above is me I compiled it for everyone, I hope it will be helpful to everyone in the future.
Related articles:
Using devtool in webpack to explain in detail
How to use implicit calls in javascript?
How to build a large single-page application with vue.js
How to implement WeChat sharing in the circle of friends and send friends in vue
Details on how to implement vuex (detailed tutorial)
Implement WeChat payment through vue.js
The above is the detailed content of How to get dom elements in vue. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
What should I do if I encounter garbled code printing for front-end thermal paper receipts?
Apr 04, 2025 pm 02:42 PM
Frequently Asked Questions and Solutions for Front-end Thermal Paper Ticket Printing In Front-end Development, Ticket Printing is a common requirement. However, many developers are implementing...
Demystifying JavaScript: What It Does and Why It Matters
Apr 09, 2025 am 12:07 AM
JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.
Who gets paid more Python or JavaScript?
Apr 04, 2025 am 12:09 AM
There is no absolute salary for Python and JavaScript developers, depending on skills and industry needs. 1. Python may be paid more in data science and machine learning. 2. JavaScript has great demand in front-end and full-stack development, and its salary is also considerable. 3. Influencing factors include experience, geographical location, company size and specific skills.
How to merge array elements with the same ID into one object using JavaScript?
Apr 04, 2025 pm 05:09 PM
How to merge array elements with the same ID into one object in JavaScript? When processing data, we often encounter the need to have the same ID...
Is JavaScript hard to learn?
Apr 03, 2025 am 12:20 AM
Learning JavaScript is not difficult, but it is challenging. 1) Understand basic concepts such as variables, data types, functions, etc. 2) Master asynchronous programming and implement it through event loops. 3) Use DOM operations and Promise to handle asynchronous requests. 4) Avoid common mistakes and use debugging techniques. 5) Optimize performance and follow best practices.
How to achieve parallax scrolling and element animation effects, like Shiseido's official website?
or:
How can we achieve the animation effect accompanied by page scrolling like Shiseido's official website?
Apr 04, 2025 pm 05:36 PM
Discussion on the realization of parallax scrolling and element animation effects in this article will explore how to achieve similar to Shiseido official website (https://www.shiseido.co.jp/sb/wonderland/)...
The difference in console.log output result: Why are the two calls different?
Apr 04, 2025 pm 05:12 PM
In-depth discussion of the root causes of the difference in console.log output. This article will analyze the differences in the output results of console.log function in a piece of code and explain the reasons behind it. �...
How to implement panel drag and drop adjustment function similar to VSCode in front-end development?
Apr 04, 2025 pm 02:06 PM
Explore the implementation of panel drag and drop adjustment function similar to VSCode in the front-end. In front-end development, how to implement VSCode similar to VSCode...
