search
HomeWeb Front-endJS TutorialHow to make the requirement of unlimited loading of data at the bottom of the sliding page

This time I will bring you how to make the requirement of unlimited loading of data at the bottom of the scrolling page, and what are the precautions for how to infinitely load data at the bottom of the scrolling page. The following is a practical case, let's take a look.

I saw an article Implementing an Infinite Scroll with Vue.js and thought it was quite practical, so I read it and briefly translated it for reference for those who need it.

From this project you can Deepen the understanding of the life cycle of Vue, when to start axios request, how to use native js with Vue to write scroll events, etc. Here I mainly extract and supplement the key points of the original article

Technology of this article Key points

  1. Vue life cycle

  2. axios simple usage

  3. moment.js format Change date

  4. Lazy loading of pictures

  5. Combined with native js to write scroll event

  6. Request section Flow

Create project

First create a simple vue project

# vue init webpack-simple infinite-scroll-vuejs

Then install some plug-ins needed for the project

# npm install axios moment

Initialize user data

After the project is built, run it and take a look

# npm run dev

After opening http://localhost:8080 and it is correct, we Let’s start modifying the code. Let’s first look at obtaining user data.

<script>
import axios from &#39;axios&#39;
import moment from &#39;moment&#39;
export default {
 name: &#39;app&#39;,
 // 创建一个存放用户数据的数组
 data() {
  return {
   persons: []
  }
 },
 methods: {
  // axios请求接口获取数据
  getInitialUsers() {
   for (var i = 0; i < 5; i++) {
    axios.get(`https://randomuser.me/api/`).then(response => {
     this.persons.push(response.data.results[0])
    })
   }
  },
  formatDate(date) {
   if (date) {
    return moment(String(date)).format(&#39;MM/DD/YYYY&#39;)
   }
  },
 beforeMount() {
  // 在页面挂载前就发起请求
  this.getInitialUsers()
 }
}
</script>

The original author also specifically reminds us that it is completely unnecessary and not recommended to request 5 times when loading the page. However, this interface can only return 1 at a time. This is only done for testing. Of course, I can also simulate the data through Mock, so I won’t go into details~

Next, let’s write the template structure and style, as follows:

<template>
 <p>
  </p>
<h1 id="Random-User">Random User</h1>
  <p>
   </p>
<p>
    <img  src="/static/imghwm/default1.png" data-src="person.picture.large" class="lazy" alt="How to make the requirement of unlimited loading of data at the bottom of the sliding page" >
   </p>
   <p>
    </p>
<p>{{ person.name.first}} {{ person.name.last }}</p>
    <ul>
     <li>
      <strong>Birthday:</strong> {{ formatDate(person.dob)}}
     </li>
     <p>
      <strong>Location:</strong> {{ person.location.city}}, {{ person.location.state }}
     </p>
    </ul>
   
  
 
</template>

<style>
.person {
 background: #ccc;
 border-radius: 2px;
 width: 20%;
 margin: 0 auto 15px auto;
 padding: 15px;

 img {
  width: 100%;
  height: auto;
  border-radius: 2px;
 }

 p:first-child {
  text-transform: capitalize;
  font-size: 2rem;
  font-weight: 900;
 }

 .text-capitalize {
  text-transform: capitalize;
 }
}
</style>

In this way, the page can display the personal information of 5 people.

Processing infinite scroll loading logic

We need to add scroll() in methods next. Monitor scrolling, and this event should be within the life cycle of mounted(). The code is as follows:

<script>
 // ...
 methods: {
  // ...
  scroll(person) {
   let isLoading = false
   window.onscroll = () => {
    // 距离底部200px时加载一次
    let bottomOfWindow = document.documentElement.offsetHeight - document.documentElement.scrollTop - window.innerHeight <= 200
    if (bottomOfWindow && isLoading == false) {
     isLoading = true
     axios.get(`https://randomuser.me/api/`).then(response => {
      person.push(response.data.results[0])
      isLoading = false
     })
    }
   }
  }
 },
 mounted() {
  this.scroll(this.persons)
 }
}
</script>

The original text of this code has some spelling errors. I have corrected it here, and also increased the distance from the bottom. Start loading data and intercept the flow.

Save it, go back to the browser, and check the effect. There is no problem~

Summary

Scroll The function of infinite loading to the bottom of the page is implemented on Vue and is similar to ordinary page development. Each time the scrolling load is not completed, the next request will not be triggered. Each request is pushed into the array, through How to make the requirement of unlimited loading of data at the bottom of the sliding page's data binding implements lazy loading (actually 0 0 I don't really agree with it...). After reading it, it feels quite simple.

I believe you have mastered the method after reading the case in this article , for more exciting content, please pay attention to other related articles on the php Chinese website!

Recommended reading:

Detailed explanation of vue calculated properties and listener practical projects

How to make a pull-up on the mobile terminal Slide down to refresh loading

The above is the detailed content of How to make the requirement of unlimited loading of data at the bottom of the sliding page. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
From Websites to Apps: The Diverse Applications of JavaScriptFrom Websites to Apps: The Diverse Applications of JavaScriptApr 22, 2025 am 12:02 AM

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python vs. JavaScript: Use Cases and Applications ComparedPython vs. JavaScript: Use Cases and Applications ComparedApr 21, 2025 am 12:01 AM

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

The Role of C/C   in JavaScript Interpreters and CompilersThe Role of C/C in JavaScript Interpreters and CompilersApr 20, 2025 am 12:01 AM

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript in Action: Real-World Examples and ProjectsJavaScript in Action: Real-World Examples and ProjectsApr 19, 2025 am 12:13 AM

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

JavaScript and the Web: Core Functionality and Use CasesJavaScript and the Web: Core Functionality and Use CasesApr 18, 2025 am 12:19 AM

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding the JavaScript Engine: Implementation DetailsUnderstanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AM

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python vs. JavaScript: The Learning Curve and Ease of UsePython vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AM

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python vs. JavaScript: Community, Libraries, and ResourcesPython vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AM

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools