Let's talk about how to control the display and hiding of TEXT in uniapp

With the development of mobile Internet, APP has become an indispensable part of people's daily life. At the same time, with the rise of mini programs, developers are also facing higher and higher development needs and user expectations. In the development of small programs, uniapp has become one of the more and more popular development frameworks. This article will introduce how to control the display and hiding of TEXT in uniapp.

1. The TEXT component in uniapp

The TEXT component in uniapp is used to display text content. It is one of the more commonly used components and is also a problem that developers often encounter.

The basic usage of the TEXT component is very simple. Just add the following code to the template tag:

<template>
  <view>
    <text>这是文本内容</text>
  </view>
</template>

Through the above code, we can display a piece of text content on the page.

2. Methods of controlling the display and hiding of TEXT in uniapp

In actual development, we may face situations where we need to control the display or hiding of text content based on certain conditions. Below we will introduce several methods that can be used in uniapp.

1. Use the v-if directive

The v-if directive is one of the most common ways to show or hide dom elements. It can show or hide based on the value of an expression. Hidden elements. When the expression evaluates to false, the element where the instruction is located will be hidden; when the expression evaluates to true, the element will be displayed.

For example, we can use the following code to implement a method of dynamically displaying or hiding the TEXT component:

<template>
  <view>
    <text v-if="showText">这是文本内容</text>
    <button @click="toggleText">点击切换</button>
  </view>
</template>
<script>
  export default {
    data() {
      return {
        showText: true
      }
    },
    methods: {
      toggleText() {
        this.showText = !this.showText
      }
    }
  }
</script>

Through the v-if instruction in the above code, we can determine whether based on the value of showText Display text content. At the same time, through the toggleText() method, we can dynamically change the value of showText to control the display and hiding of text content.

2. Use the v-show directive

The v-show directive has the same effect as the v-if directive. They can both be used to control the display and hiding of elements, but their The implementation is slightly different. The v-show directive switches the element's css attribute display based on the value of the expression. When the expression is true, the element is displayed; when the expression is false, the element is hidden.

For example, we can use the following code to implement a method of dynamically showing or hiding the TEXT component:

<template>
  <view>
    <text v-show="showText">这是文本内容</text>
    <button @click="toggleText">点击切换</button>
  </view>
</template>
<script>
  export default {
    data() {
      return {
        showText: true
      }
    },
    methods: {
      toggleText() {
        this.showText = !this.showText
      }
    }
  }
</script>

Through the v-show instruction and toggleText() method in the above code, we can dynamically Change the value of showText to control the display and hiding of text content.

3. Using CSS styles

In addition to the above methods, we can also use CSS styles to control the display and hiding of elements. Control the display and hiding of elements by adding a display style to the style tag.

For example, we can use the following code to implement a method of dynamically showing or hiding the TEXT component:

<template>
  <view>
    <text class="text">这是文本内容</text>
    <button @click="toggleText">点击切换</button>
  </view>
</template>
<style>
  .text {
    display: none;
  }

  .show {
    display: block !important;
  }
</style>
<script>
  export default {
    data() {
      return {
        showText: false
      }
    },
    methods: {
      toggleText() {
        let text = document.querySelector('.text')
        if (this.showText) {
          text.classList.remove('show')
        } else {
          text.classList.add('show')
        }
        this.showText = !this.showText
      }
    }
  }
</script>

Through the CSS style and toggleText() method in the above code, we can dynamically change the TEXT The style of the component controls the display and hiding of text content.

3. Summary

Through the above introduction, we can see that there are three ways to control the display and hiding of TEXT in uniapp: using the v-if instruction, using the v-show instruction and using CSS styles. . No matter which method is used, you can easily dynamically control the display and hiding of the TEXT component. I hope this article can help everyone solve similar problems when they encounter them in actual development.

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