vuejs push data update parent

1<!--
2 From the child component, you want to do an "emit".
3 This tells the parent to run the callback specified
4 in the child component reference. Psuedo code:
5-->
6<parent>
7  <child @send="receive"></child>
8    
9    methods: {
10      receive(childData) {
11        console.log(childData); // "Hello World"
12      }
13    }
14</parent>
15
16  
17<child>
18    <button @click="send">Click Me</button>
19
20    methods: {
21      send() {
22    	Vue.$emit('send', 'Hello World');
23      }
24    }
25</child>