Implementation method of progress bar component in Vue document

Vue is a popular JavaScript framework for building modern single-page applications (SPA). One of the common UI components is the progress bar. In the Vue documentation, there are many ways to implement this progress bar component, one of which will be introduced below.

First, in the template of the Vue component, you need to use the <div> element to contain the progress bar and set its style and properties as follows: <pre class='brush:php;toolbar:false;'>&lt;template&gt; &lt;div class=&quot;progress-bar&quot;&gt; &lt;div class=&quot;progress&quot; :style=&quot;{ width: progress + '%' }&quot;&gt;&lt;/div&gt; &lt;/div&gt; &lt;/template&gt;</pre><p>In this code, <code>.progress-bar is the class name of the outer div element, used to set its style, .progress is the class name of the inner div element, used to represent the length of the actual progress bar, and its width is set to progress '%' using the :style attribute , where progress is a data attribute used to control the percentage of the progress bar.

Next, in the script of the Vue component, you need to define the relevant logic of the progress bar component. First, define the progress data attribute in the data object. The initial value is 0. The code is as follows:

<script>
export default {
  data() {
    return {
      progress: 0
    };
  }
};
</script>

Then, you need to use the Vue life cycle hook function. The mounted function starts the automated processing of the progress bar. The code is as follows:

<script>
export default {
  data() {
    return {
      progress: 0
    };
  },
  mounted() {
    setInterval(() => {
      this.progress += 10;
      if (this.progress > 100) {
        this.progress = 0;
      }
    }, 1000);
  }
};
</script>

In this code, the setInterval function is used to set the automatic update of the progress bar. Every 1 second, the progress data attribute will increase by 10 and check whether it has reached 100%. If so, reset the progress bar to zero.

Finally, in the <style></style> tag, you need to define the styles of the .progress-bar and .progress classes. The code is as follows:

<style>
.progress-bar {
  width: 100%;
  height: 20px;
  border: 1px solid #ccc;
  border-radius: 10px;
}

.progress {
  height: 100%;
  background-color: blue;
  border-radius: 10px;
}
</style>

In this code, the .progress-bar class is used to set the style of the outer div element, including width, height, border and border radius;# The ##.progress class is used to set the style of the internal div elements, including height, background color and border radius. These styles can be changed according to actual needs.

In this way, the progress bar component can be easily implemented in a Vue application, and automatic updates can be achieved through the

progress data attribute and the setInterval function. Using this approach, you can make your application look more modern and professional, improving the user experience.