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vue.js数据传递以及数据分发slot实例详解

小云云
小云云asal
2018-05-14 17:23:252317semak imbas

本文主要给大家通过代码实例分析了vue.js数据传递以及数据分发slot的相关知识,有这方面兴趣的朋友参考下吧,希望能帮助到大家。

一、组件间的数据传递

1.父组件获取子组件的数据  

*子组件把自己的数据,发送到父级

*vm.$emit(事件名,数据);

*v-on: @

示例用法:当点击send按钮的时候,“111”变成“我是子组件的数据”

76c82f278ac045591c9159d381de2c57
9fd01892b579bba0c343404bcccd70fb
93f0f5c25f18dab9d176bd4f6de5d30e
  a80eb7cbb6fff8b0ff70bae37074b813
  b2386ffb911b14667cb8f0f91ea547a7父级获取子级的数据6e916e0f7d1e588d4f442bf645aedb2f
  6ebdbce067bc95e1851e3b8093fd634e2cacc6d41bbb37262a98f745aa00fbf0
  c9ccee2e6ea535a969eb3f532ad9fe89
  531ac245ce3e4fe3d50054a55f265927
9c3bca370b5104690d9ef395f2c5f8d1
6c04bd5ca3fcae76e30b72ad730ca86d
e388a4556c0f65e1904146cc1a846bee
  21faa6d2b39cd643d626023a8aaca7f5
  5839c0ca9224f814274f66bf7ba46f9c
94b3e26ee717c64999d7867364b1b4a3
d477f9ce7bf77f53fbcf36bec1b69b7a
  45a2772a6b6107b401db3c9b82c049c2我是父级 -> {{msg}}54bdf357c58b8a65c66d7c19c8e4d114
  //自动调用get方法,@child-msg和下面的this.$emit('child-msg',this.a)相对应
  369642beebf5fc7b730ea03cb679d725eaf2859ee44b5934442adb5b52b718da
21c97d3a051048b8e55e3c8f199a54b2
d477f9ce7bf77f53fbcf36bec1b69b7a
  684271ed9684bde649abda8831d4d355子组件-39528cedfa926ea0c01e69ef5b2ea9b0
  cd71a9f1a461f9e485615a1e4f95e5d8
21c97d3a051048b8e55e3c8f199a54b2
3f1c4e4b6b16bbbd69b2ee476dc4f83a
  var vm=new Vue({
    el:'#box',
    data:{
      a:'aaa'
    },
    components:{
      'aaa':{
        data:function(){
          return {
            msg:111,
            msg2:'我是父组件的数据'
          }
        },
        template:'#aaa',
        methods:{
          //这里的msg实际上就是子组件传递给父组件的数据
          get:function(msg){
            this.msg=msg;
          }
        },
        components:{
          'bbb':{
            data:function(){
              return {
                a:'我是子组件的数据'
              }
            },
            template:'#bbb',
            methods:{
              send:function(){
                this.$emit('child-msg',this.a);
              }
            }
          }
        }
      }
    }
  });
2cacc6d41bbb37262a98f745aa00fbf0
36cc49f0c466276486e50c850b7e4956
73a6ac4ed44ffec12cee46588e518a5e

2、子组件获取父组件的数据

在调用子组件:

32381e17b0a28ac5122d812602084f50eaf2859ee44b5934442adb5b52b718da

子组件之内:

props:['m','myMsg']
props:{
'm':String,
'myMsg':Number
        }
76c82f278ac045591c9159d381de2c57
9fd01892b579bba0c343404bcccd70fb
93f0f5c25f18dab9d176bd4f6de5d30e
  a80eb7cbb6fff8b0ff70bae37074b813
  b2386ffb911b14667cb8f0f91ea547a7自己获取父级的数据6e916e0f7d1e588d4f442bf645aedb2f
  6ebdbce067bc95e1851e3b8093fd634e2cacc6d41bbb37262a98f745aa00fbf0
  c9ccee2e6ea535a969eb3f532ad9fe89
  531ac245ce3e4fe3d50054a55f265927
9c3bca370b5104690d9ef395f2c5f8d1
6c04bd5ca3fcae76e30b72ad730ca86d
e388a4556c0f65e1904146cc1a846bee
  e388a4556c0f65e1904146cc1a846bee{{a}}94b3e26ee717c64999d7867364b1b4a3
  21faa6d2b39cd643d626023a8aaca7f5
    {{msg}}
  5839c0ca9224f814274f66bf7ba46f9c
94b3e26ee717c64999d7867364b1b4a3

d477f9ce7bf77f53fbcf36bec1b69b7a
  4a249f0d628e2318394fd9b75b4636b111111473f0a7621bec819994bb5020d29372a
  24ba698398d3c67097270230bd00cab2eaf2859ee44b5934442adb5b52b718da
21c97d3a051048b8e55e3c8f199a54b2
3f1c4e4b6b16bbbd69b2ee476dc4f83a
  var vm=new Vue({
    el:'#box',
    data:{
      a:'a'
    },
    components:{
      'aaa':{
        data:function(){
          return {
            msg:111,
            msg2:'我是父组件的数据'
          }
        },
        template:'#aa',
        components:{
          'bbb':{
            props:{
              'mmm':String,
              'myMsg':Number
            },
            template:'684271ed9684bde649abda8831d4d355我是bbb组件->{{mmm}} 0c6dc11e160d3b678d68754cc175188a {{myMsg}}39528cedfa926ea0c01e69ef5b2ea9b0'
          }
        }
      }
    }
  });

2cacc6d41bbb37262a98f745aa00fbf0
36cc49f0c466276486e50c850b7e4956
73a6ac4ed44ffec12cee46588e518a5e

运行结果:

二、内容分发:

Vue.js提供了一种混合父组件内容与子组件自己模版的方式:slot,用来占一个位置

1、基本用法 

76c82f278ac045591c9159d381de2c57
9fd01892b579bba0c343404bcccd70fb
93f0f5c25f18dab9d176bd4f6de5d30e
  a80eb7cbb6fff8b0ff70bae37074b813
  b2386ffb911b14667cb8f0f91ea547a7slot保留原来的位置6e916e0f7d1e588d4f442bf645aedb2f
  6ebdbce067bc95e1851e3b8093fd634e2cacc6d41bbb37262a98f745aa00fbf0
  c9ccee2e6ea535a969eb3f532ad9fe89
  531ac245ce3e4fe3d50054a55f265927

9c3bca370b5104690d9ef395f2c5f8d1
6c04bd5ca3fcae76e30b72ad730ca86d
e388a4556c0f65e1904146cc1a846bee
  21faa6d2b39cd643d626023a8aaca7f5
    ff6d136ddc5fdfeffaf53ff6ee95f185
      25edfb22a4f469ecb59f1190150159c61111bed06894275b65c1ab86501b08a632eb
      25edfb22a4f469ecb59f1190150159c62222bed06894275b65c1ab86501b08a632eb
      25edfb22a4f469ecb59f1190150159c63333bed06894275b65c1ab86501b08a632eb
    929d1f5ca49e04fdcb27f9465b944689
  5839c0ca9224f814274f66bf7ba46f9c
  f32b48428a809b51f04d3228cdf461fa
  21faa6d2b39cd643d626023a8aaca7f5
  5839c0ca9224f814274f66bf7ba46f9c
94b3e26ee717c64999d7867364b1b4a3
d477f9ce7bf77f53fbcf36bec1b69b7a
  4a249f0d628e2318394fd9b75b4636b1xxxx473f0a7621bec819994bb5020d29372a
  58cb293b8600657fad49ec2c8d37b472这是默认的情况7971cf77a46923278913ee247bc958ee
  e388a4556c0f65e1904146cc1a846beewelcome vue94b3e26ee717c64999d7867364b1b4a3
21c97d3a051048b8e55e3c8f199a54b2

3f1c4e4b6b16bbbd69b2ee476dc4f83a
  var vm=new Vue({
    el:'#box',
    data:{
      a:'aaa'
    },
    components:{
      'aaa':{
        template:'#aaa'
      }
    }
  });

2cacc6d41bbb37262a98f745aa00fbf0
36cc49f0c466276486e50c850b7e4956
73a6ac4ed44ffec12cee46588e518a5e

运行结果:ul标签里面的内容没有被覆盖,如果不使用slot,ul标签里的内容将会被覆盖

2、slot的name属性 

76c82f278ac045591c9159d381de2c57
9fd01892b579bba0c343404bcccd70fb
93f0f5c25f18dab9d176bd4f6de5d30e
  a80eb7cbb6fff8b0ff70bae37074b813
  b2386ffb911b14667cb8f0f91ea547a7slot中name属性的使用6e916e0f7d1e588d4f442bf645aedb2f
  6ebdbce067bc95e1851e3b8093fd634e2cacc6d41bbb37262a98f745aa00fbf0
  c9ccee2e6ea535a969eb3f532ad9fe89
  531ac245ce3e4fe3d50054a55f265927
9c3bca370b5104690d9ef395f2c5f8d1
6c04bd5ca3fcae76e30b72ad730ca86d
e388a4556c0f65e1904146cc1a846bee
  21faa6d2b39cd643d626023a8aaca7f5
    ccd4047109ea07979870c366d0ef0770    //这里slot的名字要与下面slot中name属性相对应
      25edfb22a4f469ecb59f1190150159c61111bed06894275b65c1ab86501b08a632eb
      25edfb22a4f469ecb59f1190150159c62222bed06894275b65c1ab86501b08a632eb
      25edfb22a4f469ecb59f1190150159c63333bed06894275b65c1ab86501b08a632eb
    929d1f5ca49e04fdcb27f9465b944689
    0893ef879e1c9084569d28fbef0254fb    //用法同上
      25edfb22a4f469ecb59f1190150159c6111bed06894275b65c1ab86501b08a632eb
      25edfb22a4f469ecb59f1190150159c6222bed06894275b65c1ab86501b08a632eb
      25edfb22a4f469ecb59f1190150159c6333bed06894275b65c1ab86501b08a632eb
    f6f112ef45f603be226bc581f9dd5e90
  5839c0ca9224f814274f66bf7ba46f9c
  f32b48428a809b51f04d3228cdf461fa
  21faa6d2b39cd643d626023a8aaca7f5
  5839c0ca9224f814274f66bf7ba46f9c
94b3e26ee717c64999d7867364b1b4a3
d477f9ce7bf77f53fbcf36bec1b69b7a  
  4a249f0d628e2318394fd9b75b4636b1xxxx473f0a7621bec819994bb5020d29372a
  ef79bf350fa1af528e8524e7cce352ab这是默认的情况7971cf77a46923278913ee247bc958ee      //设置name属性,给slot命名
  e388a4556c0f65e1904146cc1a846beewelcome vue94b3e26ee717c64999d7867364b1b4a3
  3ead1386f1025b804255952fab9f3bdf这是默认的情况27971cf77a46923278913ee247bc958ee
21c97d3a051048b8e55e3c8f199a54b2

3f1c4e4b6b16bbbd69b2ee476dc4f83a
  var vm=new Vue({
    el:'#box',
    data:{
      a:'aaa'
    },
    components:{
      'aaa':{
        template:'#aaa'
      }
    }
  });

2cacc6d41bbb37262a98f745aa00fbf0
36cc49f0c466276486e50c850b7e4956
73a6ac4ed44ffec12cee46588e518a5e

 运行结果:

相关推荐:

Vue内容分发slot

js组件SlotMachine实现图片切换效果制作抽奖系统_javascript技巧

如何在vue.js组件之间进行数据传递

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