本文整理汇总了TypeScript中@angular/forms.Validators类的典型用法代码示例。如果您正苦于以下问题：TypeScript Validators类的具体用法？TypeScript Validators怎么用？TypeScript Validators使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Validators类的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: expect
() => expect(Validators.required(new FormControl([1, 2]))).toBeNull());示例2: beforeEach
beforeEach(() => {
component.customBadges = true;
component.customBadgeValidators = [Validators.pattern('[A-Za-z0-9_]+')];
component.ngOnInit();
});示例3: it
it('should error on short strings', () => {
expect(Validators.minLength(2)(new FormControl('a'))).toEqual({
'minlength': {'requiredLength': 2, 'actualLength': 1}
});
});示例4:
import { Validators } from '@angular/forms'
export const USER_USERNAME = {
VALIDATORS: [
Validators.required,
Validators.minLength(3),
Validators.maxLength(20),
Validators.pattern(/^[a-z0-9._]+$/)
],
MESSAGES: {
'required': 'Username is required.',
'minlength': 'Username must be at least 3 characters long.',
'maxlength': 'Username cannot be more than 20 characters long.',
'pattern': 'Username should be only lowercase alphanumeric characters.'
}
}
export const USER_EMAIL = {
VALIDATORS: [ Validators.required, Validators.email ],
MESSAGES: {
'required': 'Email is required.',
'email': 'Email must be valid.'
}
}
export const USER_PASSWORD = {
VALIDATORS: [ Validators.required, Validators.minLength(6) ],
MESSAGES: {
'required': 'Password is required.',
'minlength': 'Password must be at least 6 characters long.'
}
}
export const USER_VIDEO_QUOTA = {示例5: emailOrEmpty
private emailOrEmpty(control: AbstractControl): ValidationErrors | null {
return control.value === '' ? null : Validators.email(control);
}示例6: constructor
constructor (private i18n: I18n) {
this.USER_USERNAME = {
VALIDATORS: [
Validators.required,
Validators.minLength(3),
Validators.maxLength(20),
Validators.pattern(/^[a-z0-9._]+$/)
],
MESSAGES: {
'required': this.i18n('Username is required.'),
'minlength': this.i18n('Username must be at least 3 characters long.'),
'maxlength': this.i18n('Username cannot be more than 20 characters long.'),
'pattern': this.i18n('Username should be only lowercase alphanumeric characters.')
}
}
this.USER_EMAIL = {
VALIDATORS: [ Validators.required, Validators.email ],
MESSAGES: {
'required': this.i18n('Email is required.'),
'email': this.i18n('Email must be valid.')
}
}
this.USER_PASSWORD = {
VALIDATORS: [
Validators.required,
Validators.minLength(6),
Validators.maxLength(255)
],
MESSAGES: {
'required': this.i18n('Password is required.'),
'minlength': this.i18n('Password must be at least 6 characters long.'),
'maxlength': this.i18n('Password cannot be more than 255 characters long.')
}
}
this.USER_VIDEO_QUOTA = {
VALIDATORS: [ Validators.required, Validators.min(-1) ],
MESSAGES: {
'required': this.i18n('Video quota is required.'),
'min': this.i18n('Quota must be greater than -1.')
}
}
this.USER_ROLE = {
VALIDATORS: [ Validators.required ],
MESSAGES: {
'required': this.i18n('User role is required.')
}
}
this.USER_DISPLAY_NAME = {
VALIDATORS: [
Validators.required,
Validators.minLength(3),
Validators.maxLength(120)
],
MESSAGES: {
'required': this.i18n('Display name is required.'),
'minlength': this.i18n('Display name must be at least 3 characters long.'),
'maxlength': this.i18n('Display name cannot be more than 120 characters long.')
}
}
this.USER_DESCRIPTION = {
VALIDATORS: [
Validators.minLength(3),
Validators.maxLength(250)
],
MESSAGES: {
'minlength': this.i18n('Description must be at least 3 characters long.'),
'maxlength': this.i18n('Description cannot be more than 250 characters long.')
}
}
}