How vue uses native.js

Vue is one of the most popular front-end frameworks currently, and Native.js is a small library written based on native JavaScript that allows JavaScript developers to easily build high-performance web applications. This article mainly introduces how Vue uses Native.js to enhance application performance and interactive experience.

1. What is Native.js?

Native.js is a lightweight JavaScript library developed based on native JavaScript to improve the performance and interactive experience of web applications. Native.js does not rely on any third-party libraries or frameworks, making it very easy to integrate into any web application.

In Native.js, we can use JavaScript to write local controllers to achieve unrestricted access and manipulation of DOM elements. At the same time, we can also use native JavaScript to complete rendering templates to ensure that the application Program performance and loading speed.

2. Why use Native.js?

In Vue.js, we usually use Vue.js to write components, and use the v-bind and v-on instructions provided by Vue.js to bind data and events. Although Vue.js is very powerful and easy to use, it will also have a certain impact on the performance of the application due to the existence of Vue.js's virtual DOM and template rendering mechanism.

And if we use Native.js, we can improve the performance of the application by simplifying rendering templates and reducing the use of virtual DOM. Native.js optimizes the performance of DOM operations, making it run faster, and because it is written based on native JavaScript, it has great advantages in performance, readability, and maintainability.

3. How to use Native.js in Vue.js?

To use Native.js in Vue.js, we need to first introduce the Native.js script file, and then write the template, controller and style code of the Vue.js component in sequence.

1. Introduce Native.js

We can use the following code to introduce Native.js into the Vue.js component:

<script type="text/javascript" src="path/to/native.js"></script>

2. Write component template

In the component template, we can use the instructions provided by Vue.js to bind data and events. For example, the following is a simple Vue.js component template:

<template>
  <div>
    <input v-model="message" type="text" placeholder="请输入内容">
    <button @click="clickHandler">点击发送</button>
    <p>{{ message }}</p>
  </div>
</template>

In this component template, we use the v-model directive to implement two-way binding of data, and use the @click directive to bind the clickHandler method .

3. Write the controller

In the component controller, we can use the API provided by Native.js to access and operate DOM elements. For example, the following is a simple Vue.js component controller:

export default {
  data() {
    return {
      message: ''
    }
  },
  methods: {
    clickHandler() {
      const message = this.message.trim()
      // 使用Native.js来访问和操作DOM元素
      const input = native.find('input')
      const p = native.find('p')
      if (message) {
        p.innerText = message
        input.value = ''
      }
    }
  }
}

In this component controller, we use the find method provided by Native.js to access and operate DOM elements, and in the clickHandler method This method is used to obtain the input box and p element, and then the native JavaScript API is used to update the value of the element.

4. Write style code

In the component style code, we can use the style instructions provided by Vue.js to add styles. For example, the following is a simple Vue.js component style code:

<style scoped>
  input {
    border: 1px solid #ccc;
    padding: 5px;
    font-size: 18px;
    margin-right: 10px;
  }

  button {
    border: none;
    padding: 5px 10px;
    background-color: #4CAF50;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
  }
</style>

In this style code, we use the scoped directive provided by Vue.js to limit the style code to the scope of the current component. Avoid affecting other component styles.

4. Precautions for using Native.js

When using Native.js, we need to follow some precautions to ensure the performance and interactive experience of the application.

1. Avoid using DOM operations in loops

In order to ensure the performance of the application, we should try to avoid using DOM operations in loops. Performing DOM operations in a loop may cause performance degradation of the application, therefore, we should try to reduce the number of DOM operations and try to cache DOM elements for direct access when needed.

2. Reasonable use of Javascript API

Although Native.js provides a powerful Javascript API to access and manipulate DOM elements, excessive use of these APIs may cause the application to become confusing. And may increase the code size. Therefore, we should use appropriate APIs and avoid excessive nesting and code complexity.

3. Try to avoid using third-party libraries such as jQuery.

Using third-party libraries such as jQuery may affect the performance of the application and may damage the structure and maintainability of the application. Therefore, we should avoid using third-party libraries such as jQuery as much as possible, and use native JavaScript and APIs provided by Native.js as much as possible to implement application functions.

4. Summary

Native.js is a small library written based on native JavaScript, which allows JavaScript developers to easily build high-performance web applications. Using Native.js in Vue.js can improve the performance and interactive experience of your application, and can reduce application loading time. When using Native.js, we need to pay attention to some things to ensure the performance and maintainability of the application.

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