我有以下异步验证器。如果我想将它用于反应形式,我必须将其作为第3个参数传递给
slug: [null, [Validators.required], [CustomValidators.slug]],
如何将额外的参数传递给验证器?
import {FormControl} from "@angular/forms";
interface IValidation {
[key: string]: boolean;
}
export class CustomValidators {
static slug(control: FormControl) {
const q = new Promise<IValidation>((resolve, reject) => {
setTimeout(() => {
if (control.value === 'TEST') {
resolve({'duplicated': true});
} else {
resolve(null);
}
}, 1000);
});
return q;
}
}
如果我用它
slug:[null,[Validators.required],[CustomValidators.slug(&#39; string param&#39;)]],
问题是第一个参数是控件。
答案 0 :(得分:1)
写下你的验证:
static slug(param: string) {
return (control: FormControl) => {
const q = new Promise<IValidation>((resolve, reject) => {
setTimeout(() => {
if (control.value === 'TEST') {
resolve({'duplicated': true});
} else {
resolve(null);
}
}, 1000);
});
return q;
};
}