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Home Web Front-end Vue.js How to use Vue to implement sidebar effects

How to use Vue to implement sidebar effects

Sep 19, 2023 pm 02:00 PM
vue Sidebar special effects

How to use Vue to implement sidebar effects

How to use Vue to implement sidebar special effects

Vue is a popular JavaScript framework. Its simplicity, ease of use and flexibility enable developers to quickly build interactions Robust single-page application. In this article, we will learn how to use Vue to implement a common sidebar effect, and provide specific code examples to help us understand better.

  1. Create Vue project

First, we need to create a Vue project. You can use the Vue CLI (command line interface) provided by Vue, which can quickly generate a basic Vue project structure.

Open the terminal and enter the following command in the directory where the project is located:

$ vue create sidebar-animation
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Then follow the prompts to select the required configuration.

  1. Create components

Next, we need to create two components, one is the sidebar component and the other is the main content component.

Create two files in the src folder: Sidebar.vue and MainContent.vue.

Sidebar.vue code:

<template>
  <div class="sidebar">
    <ul>
      <li v-for="item in menuItems" :key="item.id" @click="selectItem(item)">
        {{ item.name }}
      </li>
    </ul>
  </div>
</template>

<script>
export default {
  data() {
    return {
      menuItems: [
        { id: 1, name: "Home" },
        { id: 2, name: "About" },
        { id: 3, name: "Contact" },
      ],
    };
  },
  methods: {
    selectItem(item) {
      // 在这里可以触发对应的路由跳转或者显示相应的内容
      console.log(item.name);
    },
  },
};
</script>

<style scoped>
.sidebar {
  width: 200px;
  height: 100vh;
  background-color: #f0f0f0;
  padding: 10px;
}

ul {
  list-style-type: none;
}

li {
  margin-bottom: 10px;
  cursor: pointer;
}
</style>
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MainContent.vue code:

<template>
  <div class="main-content">
    <h1 id="selectedItem">{{ selectedItem }}</h1>
  </div>
</template>

<script>
export default {
  data() {
    return {
      selectedItem: "",
    };
  },
};
</script>

<style scoped>
.main-content {
  padding: 10px;
}
</style>
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Here, we have created a simple sidebar component and a main content component. An array of menu items is defined in the sidebar component and rendered into li elements through the v-for directive. When each menu item is clicked, the selectItem method is triggered through the bound click event and the selected menu item is passed. The name of the selected menu item is displayed in the main content component.

  1. Use components

Use the two components just created in App.vue.

<template>
  <div id="app">
    <Sidebar />
    <MainContent />
  </div>
</template>

<script>
import Sidebar from "./components/Sidebar.vue";
import MainContent from "./components/MainContent.vue";

export default {
  components: {
    Sidebar,
    MainContent,
  },
};
</script>

<style>
#app {
  display: flex;
  height: 100vh;
}
</style>
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Here we introduce both the Sidebar component and the MainContent component and use these two components in the template.

  1. Run the project

After completing the above steps, we can run the following command in the terminal to start the project:

$ npm run serve
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Then, open it in the browser http://localhost:8080, you can see a page with sidebar effects.

Conclusion

Through this article, we learned how to use Vue to implement a sidebar special effect. We created a sidebar component and a main content component, and used Vue's data binding and event binding to implement communication between components. At the same time, we also provide specific code examples to help readers better understand and use Vue. I hope this article can help you and let you better use Vue to build web applications.

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