single data binding in Vue, two-way data binding can be achieved through the v-model instruction. However, there is no concept of instructions in React, and React does not support bidirectional data binding by default. React only supports the transfer of data from the state to the page, but it cannot automatically transfer the data from the page to the state for storage. In React, only single data binding is supported, not bidirectional data binding. If you don't believe me, let's look at the following example: import React from "react"; export default class MyComponent extends React.Component { constructor(props) { super(props); this.state = { msg: "this is the default msg for MyComponent components" }; } render() { return ( <div> <h3>Test component</h3> <input type="text" value={this.state.msg} /> </div> ); } } In the code above, we try to read the value of state.msg in the input text box, but a warning pops up in the run result: Warning: Failed prop type: You provided a `value` prop to a form field without an `onChange` handler. This will render a read-only field. If the field should be mutable use `defaultValue`. Otherwise, set either `onChange` or `readOnly`. Bidirectional data binding is implemented through the onChange method if you bind value attributes to a form element, you must also bind readOnly for the form element, or provide the onChange event: if you bind readOnly, it means that the element is read-only and cannot be modified. At this point, the console will not pop up a warning. if you are binding onChange, it means that the value of…