Wechat applet parameter transfer

1,navigator  When jumping

wxml page （ Available when there are many parameters “&”）

1	<navigator url='../index/index?id=1&name=aaa'></navigator>

　　 Or add a click event ,js use navigateTo Jump and pass parameters , The two effects are the same

 wx.navigateTo({
            url: '../index/index?id=1&name=aaa',
          })

js page   stay onLoad Get directly from

  onLoad: function (options) {
     // Page initialization  options Parameters for page Jump 
     var id = options.id    // Get value 

  },

2. Global variables

app.js page

globalData:{
      id:null
    }     

assignment ：

var app = getApp();
app.globalData.id = 2

Value ：

var app = getApp();
var id = app.globalData.id

3. list index Subscript value

wxml page

1	<button bindtap='clickMe' data-id='1'> Click on </button>

If you need to pass more than one , Can write multiple data-[ Parameters ] The way to deliver

js page

1 2 3 4

clickMe:function(e){   var id = e.currentTarget.dataset.id   console.log(id); },

　　 Be careful ： adopt wxml Set up data-[ Parameter name ] Pass parameters ,[ Parameter name ] It can only be lowercase , It can't be capitalized

4.form Form transfer value

form Form value transfer is relatively simple and commonly used , No more examples