thirdScriptError Cannot read property setData of undefined at api request success

时间 2021-01-12

标签小程序繁體版

原文原文链接

在微信小程序里面用this.setData({})设置data中的变量出现的问题，我出现问题的是一个request的请求，要把请求到的数据放到data中，这里看起来很正常，语法也没有错误，但是注意这里用的并不是箭头函数，所以函数内部的this指向的并不是函数外部环境的this，而是函数自身，所以没有办法将想要的数据存到data中而报错正确的做法：在request函数外面手动将一个变量设置为

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1. thirdScriptError Cannot read property '12' of undefined;at pages/me/me onReady function;at api reque
2. 微信小程序网络请求报错 Cannot read property 'setData' of undefined;at api request success callback function
3. appServiceSDKScriptError：Cannot read property 'mode' of undefined;at api onAppEnterBackground callba
4. TypeError: Cannot read property '$router' of undefined at eval
5. TypeError: Cannot read property '$$' of undefined at HTMLElement._attached.wx.getPlatform._touchstar
6. TypeError: Cannot read property 'indexOf' of undefined at VueComponent.resetField
7. Cannot read property 'field' of undefined (at _8 (jquery.numberbox.js:33))
8. Cannot read property 'globalData' of undefined;at App onLaunch function
9. Cannot read property '$el' of undefined at VueComponent
10. Cannot read property 'thisCompilation' of undefined

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