line:1,column:643530,TypeError: i is not a function. (In \'i(r)\', \'i\' is undefined) Stack:r@https://lib/WAServiceMainContext.js:1:643530 s@https://lib/WAServiceMainContext.js:1:123462 callAndRemove@https://lib/WAServiceMainContext.js:1:118821 invokeCallbackHandler@https://lib/WAServiceMainContext.js:1:122358 @[native code] @https://lib/WAServiceMainContext.js:1:121202 invoke@https://lib/WAServiceMainContext.js:1:121716 invoke@https://lib/WAServiceMainContext.js:1:123601 R$@https://lib/WAServiceMainContext.js:1:1006136 j$@https://lib/WAServiceMainContext.js:1:1008852 @https://lib/WAServiceMainContext.js:1:1009343 @https://lib/WAServiceMainContext.js:1:635590 emit@https://lib/WAServiceMainContext.js:1:119315 emit@[native code]

- 需求的场景描述（希望解决的问题）    不考虑临时数据进行存储的情况下、 用户填写好表单数据，不小心点击返回。数据没有了 - 希望提供的能力 能否监听用户返回操作，进行弹框提示用户确认是否要返回上页~

[图片]

https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/channels-live.html 通过wx.reserveChannelsLive预约后 再次查询wx.getChannelsLiveNoticeInfo 返回reservable还是可以预约 导致重复预约

wx.getSetting({   withSubscriptions: true,   success (res) {     console.log(res)     // res.authSetting = {     //   "scope.userInfo": true,     //   "scope.subscribeMessage": true     // }     console.log(res.subscriptionsSetting)     // res.subscriptionsSetting = {     //   SYS_MSG_TYPE_INTERACTIVE: 'accept',     //   SYS_MSG_TYPE_RANK: 'accept',     //   zun-LzcQyW-edafCVvzPkK4de2Rllr1fFpw2A_x0oXE: 'reject',     //   ke_OZC_66gZxALLcsuI7ilCJSP2OJ2vWo2ooUPpkWrw: 'ban',     // }   } }) wx.requestSubscribeMessage({ tmplIds: ['Y-aABRdqzPotRYrBtlIOEa03NisFYoigBE66r99aedA'], success: res => { console.log(res) }, failerr=>{ console.log(err) }, complete: res=>{ console.log('complete', res) } }); [图片]

checkbox-group多项选择器使用catchchange阻止冒泡事件失效，依然触发父级的点击事件，求解！！！