[ADD]计算属性

2020-10-08 13:20:55 +08:00 · 2020-10-08 13:20:55 +08:00 · ce7af5ac23
parent d86c6ecf5b
commit ce7af5ac23
1 changed files with 64 additions and 0 deletions
--- a/index1.html
+++ b/index1.html
@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<!--[if lt IE 7]>      <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
+<!--[if IE 7]>         <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
+<!--[if IE 8]>         <html class="no-js lt-ie9"> <![endif]-->
+<!--[if gt IE 8]>      <html class="no-js"> <!--<![endif]-->
+<html>
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <title>Page Title</title>
+    <meta name="description" content="">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link rel="stylesheet" href="">
+    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
+  </head>
+  <body>
+    <!--[if lt IE 7]>
+      <p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="#">upgrade your browser</a> to improve your experience.</p>
+    <![endif]-->
+    <div id="example">
+      <p>Original Message: "{{ message }}"</p>
+      <p>Computed reversed Message: "{{reversedMessage}}"</p>
+    </div>
+
+    <div id="demo">
+      <h3>{{ fullName }}</h3>
+    </div>
+
+
+    <script>
+      var app = new Vue({
+        el: '#example',
+        data: {
+          message: 'Hello Vue!'
+        },
+        computed: {
+          reversedMessage: function(){
+            return this.message.split('').reverse().join('')
+          }
+        }
+      })
+
+      var vm  = new Vue({
+        el: '#demo',
+        data: {
+          firstName: 'foo',
+          lastName: 'bar',
+        },
+        computed: {
+          fullName: {
+            get: function(){
+              return this.firstName + ' ' + this.lastName
+            },
+            set: function(newValue){
+              var names = newValue.split(' ')
+              this.firstName = names[0]
+              this.lastName = names[names.length - 1]
+            }
+          }
+        }
+      })
+    </script>
+  </body>
+</html>