Home Web Front-end Vue.js The difference between ref and props in vue

The difference between ref and props in vue

May 02, 2024 pm 10:39 PM
vue

The difference between ref and props in Vue: ref is a method that points to a component instance and can be used to dynamically operate the component; props is a property used to receive data from the parent component.

The difference between ref and props in vue

The difference between ref and Props in Vue

In Vue, ref and props are two things used for management Different mechanisms for component data and behavior.

ref

  • Definition: A method that points to a component instance.
  • Usage: You can assign a component instance to a variable using the ref attribute.
  • Purpose: Allow direct access to the component instance so that it can be dynamically manipulated.
  • Access method: Use the this.$refs object, such as this.$refs.myComponent.

Props

  • Definition: Properties that the component receives data from the parent component.
  • Usage: Use the props option to define the properties that the component needs to receive, and then use the v-bind directive to pass the data to the component.
  • Purpose: Allow components to communicate and share data with parent components.
  • Access method: You can use this.propName to access props data.

Key differences

##Data flowOne-way (from child to parent)One-way (from parent to child) PurposeDynamic operation componentReceive external data
Features ref props
Type Method Attribute
Access method Dynamic Static

Summary

ref is used to dynamically access and operate component instances, while props are used to receive data from the parent component. Both are important tools for managing component data in Vue, but use different mechanisms based on different needs.

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