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| const app = Vue.createApp({
| data() {
| return {
| currentUserInput: '',
| message: 'Vue is great!',
| };
| },
| methods: {
| saveInput(event) {
| this.currentUserInput = event.target.value;
| },
| setText() {
| this.message = this.currentUserInput;
| },
| },
| });
|
| app.mount('#app');
|
| // ....
|
| const data = {
| message: 'Hello!',
| longMessage: 'Hello! World!'
| };
|
| const handler = {
| set(target, key, value) {
| if (key === 'message') {
| target.longMessage = value + ' World!';
| }
| target.message = value;
| }
| };
|
| const proxy = new Proxy(data, handler);
|
| proxy.message = 'Hello!!!!';
|
| console.log(proxy.longMessage);
|
|
