How to control page style on vue page (two methods)

Vue is a very popular JavaScript front-end framework. Its feature is data-driven, allowing developers to build interactive user interfaces more efficiently. In Vue, we can use variables to control page style.

In Vue, we can use computed properties (Computed) and binding style (Binding Style) to control the page style. Let’s introduce each one below.

1. Calculated properties

The calculated property is a special property in Vue. Its value is a function. In the calculated property function, we can dynamically return a new value based on changes in the data. . Therefore, we can use computed properties to figure out the style value to bind.

The following is an example:

<template>
  <div></div>
</template>
<script>
  export default {
    data() {
      return {
        color: &#39;red&#39;,
        fontSize: &#39;16px&#39;
      }
    },
    computed: {
      styleObj() {
        return {
          color: this.color,
          fontSize: this.fontSize
        }
      }
    }
  }
</script>

In this example, we first define two variables color and fontSize in data, which are both style values ​​to be bound. Next, a calculated attribute styleObj is defined in computed, which returns an object. The attribute name in the object is the style name, and the attribute value is the style value. Finally, use the binding style method in the template to bind styleObj to the div to achieve style binding.

2. Binding styles

In addition to using calculated properties, we can also use binding styles to control page styles. Vue provides a concise syntax that allows us to use variables to bind style values.

The following is an example:

<template>
  <div></div>
</template>
<script>
  export default {
    data() {
      return {
        textColor: &#39;red&#39;,
        fontSize: &#39;16px&#39;
      }
    }
  }
</script>

In this example, we use the binding style method in the template to pass an object to the style attribute. The attribute name in this object is the name of the style to be bound, and the attribute value is the variable value. This method is very simple and can achieve dynamic binding styles.

Summary

There are two ways to control page style in Vue: calculated properties and bound styles. Computed properties use functions to return objects to calculate the style objects to be bound; binding styles uses concise syntax to bind variables to styles. No matter which method is used, the page style can be effectively controlled, making our application more flexible and powerful.

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