Wechat applet page jump to pass parameters

First of all, there are APIs that can pass parameters when jumping to the applet page

• wx.navigateTo()
  Keep the current page and jump to a page in the app.But can't jump to the tabbar page
• wx.reLaunchTo()
  Close all pages, open to a page in the app
• wx.redirectTo()
  Close the current page and jump to a page in the application.But it is not allowed to jump to the tabbar page.

When jumping with wx.navigateTo(), it is necessary to convert the data of the json object into the form of a string

We need to perform a process similar to packing and unpacking the json array through these two functions.

JSON.stringify();//Convert json to string valueJSON.parse();//Convert the string toObject Receive

This is the json array we pass across pages

var json = [{"gender": "gender","weight": "weight"}]

The next step is to pass the path with parameters, convert the parameters into string format, and pass them to the target page

 wx.navigateTo({//url fill in the page you want to jump tourl: './../index/index?json=' + JSON.stringify(json) //Convert json array to string

After passing at the same time, we need to take out the passed parameters on the target page

/** * Lifecycle function -- monitor page loading */onLoad: function (options) {var list = JSON.parse(options.json) //The string passed from the first page is converted into a json arrayconsole.log(list)