离子错误 v.context.$implicit 未定义 [英] Ionic Error v.context.$implicit is undefined

问题描述

我的代码中有错误.错误是这样说的:v.context.$implicit 未定义

I have the error in my code. The error says like this: v.context.$implicit is undefined

问题是，有时会出错，有时不会……有人能解释一下为什么会这样吗……

The problem is, sometimes it error, and sometimes it doesn’t… Can somebody explain why it happen…

这是我的 html 代码:

This my html code:

<ng-container *ngFor="let time of item.timeInfo | keys" >
    <ion-row *ngIf="time == thisDay"> 
      <ion-col col-3 no-padding>
        <ng-container *ngIf="checkTime(); else closeButton">
          <button small ion-button block color="secondary" outline> OPEN </button>
        </ng-container>
        <ng-template #closeButton>
          <button small ion-button block color="danger" outline>Close </button>
        </ng-template>
      </ion-col>
      <ion-col col-9 >
        {{ item.timeInfo[thisDay].open }} - {{ item.timeInfo[thisDay].close }}
      </ion-col>
    </ion-row>
  </ng-container>

这是我的 json 代码:

Here my json code:

"item":{
   "timeInfo": {
            "Sat": {
                "open": "11:00",
                "close": "21:00"
            },
            "Sun": {
                "open": "9:00",
                "close": "21:30"
            },
            "Mon": {
                "open": "11:00",
                "close": "22:30"
            },
            "Tue": {
                "open": "12:00",
                "close": "22:00"
            },
            "Web": {
                "open": "12:00",
                "close": "22:30"
            },
            "Thu": {
                "open": "9:30",
                "close": "22:30"
            },
            "Fri": {
                "open": "12:30",
                "close": "22:00"
            }
        },
 };

这里是我的版本:

@ionic/cli-utils  : 1.15.2
ionic (Ionic CLI) : 3.15.2

local packages:
@ionic/app-scripts : 3.0.0
Ionic Framework    : ionic-angular 3.7.1

System:
Node : v6.11.2
npm  : 5.4.2
OS   : Windows 8.1

Misc:
backend : pro

有人可以帮助我吗?特维姆

Can somebody help me?? Tyvm

推荐答案

如果我看不到你是 TS 代码，我真的无能为力.我也遇到了同样的问题，我的错误是尝试在 result[i] = data[i] 之类的数组中插入新数据，而不是 result.push(data[i]) 这实际上是正确的.希望能帮助到你 ！

i can't really help if i don't see you're TS code. The same problem occured to me and my mistake was to try to insert a new data in an array like result[i] = data[i] and not like result.push(data[i]) which is actually correct. Hope it helps !

这篇关于离子错误 v.context.$implicit 未定义的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！