Angular ngClass 条件类工作正常，但应用程序在构建时失败
当我使用哈巴狗代码单击某个选项卡时，我想添加一个“活动”类
a.nav-link([class.active]="view === 'profile'", (click)="changeView('profile')") Profile
a.nav-link([class.active]="view === 'products'", (click)="changeView('products')") Products
a.nav-link([class.active]="view === 'loans'", (click)="changeView('loans')") Loans
a.nav-link([class.active]="view === 'notifications'", (click)="changeView('notifications')") Notifications
它工作正常，如图所示 
但是，当我为生产构建它时，我收到错误
此条件将始终返回“false”，因为类型“贷款”和“个人资料”没有重叠。< /code>
我用过typeof view 并在任何给定时间返回字符串。我不知道为什么错误指向 view 变量的值作为类型。
在 .ts 文件中，我将视图变量初始化为 view:string = 'profile'
我缺少什么？我已经阅读并重新阅读了 AngClass ngClass 上的文档以及这里的几篇文章在 stackoverflow 上无济于事。
I want to add an "active" class when I click on a certain tab using the pug code
a.nav-link([class.active]="view === 'profile'", (click)="changeView('profile')") Profile
a.nav-link([class.active]="view === 'products'", (click)="changeView('products')") Products
a.nav-link([class.active]="view === 'loans'", (click)="changeView('loans')") Loans
a.nav-link([class.active]="view === 'notifications'", (click)="changeView('notifications')") Notifications
It works fine as can be seen in the image
However when I build it for production, I get the error
This condition will always return 'false' since the types '"loans"' and '"profile"' have no overlap.
I have used typeof view and it returns string, at any given time. I am at a loss as to why the error is pointing at the values of the view variable as the type instead.
in the .ts file, I innitialzed the view variable as view:string = 'profile'
What I'm I missing? I have read and re-read the angular docs on ngClass as well as several posts here on stackoverflow to no avail.
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