WeChat applet deep object array re-assignment
The data is an object array, and the grade of the first object array needs to be re-assigned when the page loads**
index.js
Page({
data: {
list: [
{
class: '数学',
id: '1',
name: "张三",
grade:0,
},
{
class: '数学',
id: '1',
name: "李四",
grade:0,
},
]
}
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
//将初始值取出并赋值给临时变量，此步骤为必须，否则重新赋值失败
var tem=this.data.list[0].total
this.setData({
// [''] 为必须
['list[0].total']:tem+1
})
}