Strange question: small program onload method cannot access data data, the great god, please give di-CodePudding

1, the list page jump to emp

 showEmp (e) 
{
Let the openid=e.c. with our fabrication: urrentTarget. Dataset. The openid; 
The console. The log (" page spread and openid: ", openid); 

//wx. ShowToast ({title: 'the OpenID:' + OpenID, icon: 'none', duration: 3000}); 
//setTimeout (function () {wx. HideToast ()}, 2000); 

Wx. NavigateTo ({
Url: '/pages/emp/emp? Openid='+ openid, 
}) 

}

2 emp. Within the js onl oad, according to a lot of data query and then prepare to page

 Page ({

/* * 
* the initial data of the page 
*/
Data: {
Tiwen: [] 
}, 


/* * 
* life cycle function - listening page load 
*/
OnLoad: function (options) {
Let the openid=options. The openid; 
Enclosing getEmpList (openid); 
The console. The log (" body temperature Data this week 2: "+ this. Data. Tiwen); 



} 

/* * 
* access to specify the openid temperature data this week 
* 
*/
GetEmpList: function (openid) 
{
var now=new Date(); 
Var d1=now. GetFullYear () + "/" + enclosing getWeek (0); 
Var d7=now. GetFullYear () + "/" + enclosing getWeek (7); 
Let tw=[]; 
Var that=this; 

Db. Collection (' emps). The where ({
Indate: cm. Gte (new Date (d1). GetTime ()). And (cm) lt (new Date (d7). GetTime () - 3)), 
_openid: openid 
}) 
.get ({
Success: the function (res) {
The console. The log (" obtain specified openid temperature data: ", res. Data); 
for (var i=0; i The console. The log (" body temperature: "+ res. Data [I] tiwen); 
Tw [I]=res. Data [I] tiwen; 
} 
The console. The log (" temperature data this week 1: "+ tw); 

That the setData ({
Tiwen: tw, //an error here  
}); 

} 

}); 

},

3/error code

 always read a property 'tiwen of undefined; At "pages/emp/emp" page lifeCycleMethod onl oad function 
TypeError: always read the property 'tiwen of undefined 
The at ye. onl oad (http://127.0.0.1:24981/appservice/pages/emp/emp.js:66:42) 
The at ye. & lt; Anonymous> (WAService. Js: 1:13 53019) 
__callPageLifeTime__ at ye p. (52764) WAService. Js: 1:13 
At Tt (WAService. Js: 1:13 67714) 
The at WAService. Js: 1:13 69208 
The at xt (WAService. Js: 1:13 69254) 
Ats Function. & lt; Anonymous> (WAService. Js: 1:13 74768) 
The at i. & lt; Anonymous> (WAService. Js: 1:13 44283) 
At appropriate precautions MIT (WAService. Js: now 5256) 
At the Object. Emit (WAService. Js: 1:6 07614)

CodePudding user response:

A sofa, a great god come in, please.

CodePudding user response:

I also encountered similar problems, the key is that the setData ({
Tiwen: tw, & lt; Span style="color: # FF0000;">//an error here & lt;/span>
}); Don't know why old said tiwen undefined, looking forward to the great god to reassure

CodePudding user response:

You put the returned res print it out and see, there was a question field