@angular/forms: 6.1.7
我正在尝试创建一个自定义验证器,用于检查2formControl的不一致。
在遵循时,当向以下两种表单之一输入值时,会出现一个错误:
Uncaught Error: Expected validator to return Promise or Observable.
at toObservable (forms.js:596)
at Array.map (<anonymous>)
at FormControl.asyncValidator (forms.js:584)
at FormControl.pus
在我的项目loginForm中有
但是我在‘formControlName’上得到了一个错误:
错误TypeError:无法读取Object.eval at Object.debugUpdateDirectives at checkAndUpdateView (core.js:23306) at callViewAction (core.js:23547) at execComponentViewsAction (core.js:23489) at checkAndUpdateView (core.js:23312) at callViewAction (core.js:23547) a