How to use the mergeProps function from vue

vue.mergeProps is a function in Vue.js that merges a component's default props with the props passed to it.

How does vue.mergeProps work?

vue.mergeProps is a function in Vue.js that merges a component's default props with the props passed to it. Here's how it works:

1. When you define a component in Vue.js, you can specify default values for its props using the props option.

2. When a component is created, Vue.js creates a propsData object that contains the values of the props passed to the component.

3. The vue.mergeProps function takes two arguments: the component's default props object, and the propsData object containing the values of the props passed to the component.

4. The vue.mergeProps function merges the default props object with the propsData object, with the propsData object taking precedence over the default props object.

5. The merged props object is returned by the vue.mergeProps function.

Here is an example of using vue.mergeProps to merge a component's default props with the props passed to it:

javascriptCopy code
import Vue from 'vue';

const MyComponent = Vue.extend({
  props: {
    message: {
      type: String,
      default: 'Hello, world!'
    }
  }
});

const propsData = {
  message: 'Hello, Vue!'
};

const mergedProps = Vue.mergeProps(MyComponent.options.props, propsData);

console.log(mergedProps);
// Output: { message: 'Hello, Vue!' }

In this example, we define a component MyComponent with a single prop message that has a default value of 'Hello, world!'.

We then create an object propsData that contains the value of the message prop passed to the component.

We use vue.mergeProps to merge the default props object of the MyComponent component with the propsData object containing the passed props.

Finally, we log the merged props object to the console, which contains the value of the message prop passed to the component, overwriting the default value.

Ai Example

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import Vue from "vue";

const MyComponent = Vue.extend({
  props: {
    message: {
      type: String,
      default: "Hello, world!",
    },
  },
});

const propsData = {
  message: "Hello, Vue!",
};

const mergedProps = Vue.mergeProps(MyComponent.options.props, propsData);

console.log(mergedProps);
// Output: { message: 'Hello, Vue!' }

In this example, we define a component MyComponent with a single prop message that has a default value of 'Hello, world!'. We then create an object propsData that contains the value of the message prop passed to the component. We use vue.mergeProps to merge the default props object of the MyComponent component with the propsData object containing the passed props. Finally, we log the merged props object to the console, which contains the value of the message prop passed to the component, overwriting the default value.