that.setData 没有生效问题如下图 - WXOPEN Club

jxu 1楼•5 年前

that.setData({

latelyPlayId: 1000

});

that.tap();

这一块有问题，setData 之后直接输出 latelyPlayId 好像不可以，按照之前 react 的经验 setData 应该是异步的，最好加一个 setTimeout 之后在输出看结果~

tao42 2楼•5 年前

Page({
    data: {
        latelyPlayId: 45,
    },

    tap: function () {
        const that = this;
        console.info(that.latelyPlayId + " that.latelyPlayId");
    },
    onReady: function () {
        const that = this;
        wx.request({
            url: '',
            data: {_: new Date().getTime()},
            header: {
                'content-type': 'application/json'
            },
            method: 'GET',
            success: function (res) {
                that.setData({
                    latelyPlayId: 1000
                });
                that.tap();
            },
        })
    }
});