vue生命周期笔记-version0.1

父组件(A.vue)
<template>
<div>
  <div id="example">
    <p>Original message: "{{ message }}"</p>
    <p>Computed reversed message: "{{ reversedMessage }}"</p>
    <child></child>
  </div>
</div>
</template>

<script>
import child from ‘./B‘
export default {
  name: ‘A‘,
  data () {
    return {
      message: ‘Hello‘
    }
  },
  components: {
    child
  },
  computed: {
    // 计算属性的getter 默认的
    reversedMessage: function () {
      return this.message.split(‘‘).reverse().join(‘‘)
    }
  },
  // 生命周期钩子
  beforeCreate () {
    console.log(‘父组件 beforeCreate‘)
  },
  created () {
    console.log(‘父组件 created‘)
  },
  beforeMount () {
    console.log(‘父组件 beforeMount‘)
  },
  mounted () {
    console.log(‘父组件 mounted‘)
  },
  beforeUpdate () {
    console.log(‘父组件 beforeUpdate‘)
  },
  updated () {
    console.log(‘父组件 updated‘)
  },
  beforeDestroy () {
    console.log(‘父组件 beforeDestroy‘)
  },
  destroyed () {
    console.log(‘父组件 destroyed‘)
  }
}
</script>

<style scoped>

</style>
-------------------------
子组件(B.vue)
<template>
<div style="border: 1px solid red;">
  <p >This is child component</p>
</div>
</template>

<script>
export default {
  name: ‘B‘,
  data () {
    return {
    }
  },
  // 生命周期钩子
  beforeCreate () {
    console.log(‘子组件 beforeCreate‘)
  },
  created () {
    console.log(‘子组件 created‘)
  },
  beforeMount () {
    console.log(‘子组件 beforeMount‘)
  },
  mounted () {
    console.log(‘子组件 mounted‘)
  },
  beforeUpdate () {
    console.log(‘子组件 beforeUpdate‘)
  },
  updated () {
    console.log(‘子组件 updated‘)
  },
  beforeDestroy () {
    console.log(‘子组件 beforeDestroy‘)
  },
  destroyed () {
    console.log(‘子组件 destroyed‘)
  }
}
</script>

<style scoped>

</style>