• 概要
@angular/forms

AsyncValidatorFn

interface
stable

A function that receives a control and returns a Promise or observable that emits validation errors if present, otherwise null.

API

    
      interface AsyncValidatorFn {  (control: AbstractControl<any, any, any>): any;}
    
    

any
@paramcontrolAbstractControl<any, any, any>
@returnsany
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