import React, { Component } from "react";
class Form extends Component {
state = {
data:{},
errors:{}
} import Joi from "@hapi/joi";
doSubmit = () => {
// call the server
console.log("Submitted!");
}; import Form from "./common/form";
// ...
class LoginForm extends Form { renderButton(label) {
return (
<button disabled={this.validate()} className="btn btn-primary">
{label}
</button>
);
} {this.renderButton("Login")} import Input from "./input";
//...
renderInput(name, label) {
const { data, errors } = this.state;
return (
<Input
name={name}
label={label}
value={data[name]}
onChange={this.handleChange}
error={errors[name]}
/>
); render() {
return (
<form onSubmit={this.handleSubmit}>
{this.renderInput("username", "Username")}
{this.renderInput("password", "Password")}
{this.renderButton("Login")}
</form>
);
} renderInput(name, label, type = "text") {
const { data, errors } = this.state;
return (
<Input
name={name}
type={type}
label={label}
value={data[name]}
onChange={this.handleChange}
error={errors[name]}
/>
);
} render() {
return (
<form onSubmit={this.handleSubmit}>
{this.renderInput("username", "Username")}
{this.renderInput("password", "Password", "password")}
{this.renderButton("Login")}
</form>
);
} import React from "react";
const Input = ({ name, type, label, value, error, onChange }) => {
return (
<div className="form-group">
<label htmlFor={name}>{label}</label>
<input
value={value}
onChange={onChange}
id={name}
name={name}
type={type}
className="form-control"
/>
{error && <div className="alert alert-danger">{error}</div>}
</div>
);
};
export default Input; <input
value={value}
name={name}
type={type}
onChange={onChange}
id={name}
className="form-control"
/> import React from "react";
const Input = ({ name, label, error, ...rest }) => {
return (
<div className="form-group">
<label htmlFor={name}>{label}</label>
<input {...rest} name={name} id={name} className="form-control" />
{error && <div className="alert alert-danger">{error}</div>}
</div>
);
};
export default Input; using System;
using System.ComponentModel.DataAnnotations;
namespace MvcApplication9.Models
{
public class Customer
{
public int Id { set; get; }
[Required(ErrorMessage = "Name is required.")]
[StringLength(50)]
public string Name { set; get; }
[Display(Name = "Email address")]
[Required(ErrorMessage = "Email address is required.")]
[RegularExpression(@"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*",
ErrorMessage = "Please enter a valid email address.")]
public string Email { set; get; }
[Range(0, 10)]
[Required(ErrorMessage = "Rating is required.")]
public double Rating { set; get; }
[Display(Name = "Start date")]
[Required(ErrorMessage = "Start date is required.")]
public DateTime StartDate { set; get; }
}
}
using System.Web.Mvc;
using MvcApplication9.Models;
namespace MvcApplication9.Controllers
{
public class CustomerController : Controller
{
[HttpGet]
public ActionResult Create()
{
var customer = new Customer();
return View(customer);
}
[HttpPost]
public ActionResult Create(Customer customer)
{
if (this.ModelState.IsValid)
{
//todo: save data
return Redirect("/");
}
return View(customer);
}
}
}
<appSettings>
<add key="ClientValidationEnabled" value="true"/>
@{ Html.EnableClientValidation(false); }
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>
@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<fieldset>
<legend>Customer</legend>
<div class="editor-label">
@Html.LabelFor(model => model.Name)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Name)
@Html.ValidationMessageFor(model => model.Name)
</div>
<input data-val="true" data-val-required="The Birthday field is required." id="Birthday" name="Birthday" type="text" value="" />
<script src="../../Scripts/customvaildation.js" type="text/javascript"></script>
using System;
using System.ComponentModel.DataAnnotations;
namespace MvcApplication9.CustomValidators
{
public class MyDateValidator : ValidationAttribute
{
public int MinYear { set; get; }
public override bool IsValid(object value)
{
if (value == null) return false;
var date = (DateTime)value;
if (date > DateTime.Now || date < new DateTime(MinYear, 1, 1))
return false;
return true;
}
}
}
[Display(Name = "Start date")]
[Required(ErrorMessage = "Start date is required.")]
[MyDateValidator(MinYear = 2000,
ErrorMessage = "Please enter a valid date.")]
public DateTime StartDate { set; get; }
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using MvcApplication9.CustomValidators;
namespace MvcApplication9.Models
{
public class Customer : IValidatableObject
{
//... same as before
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
var fields = new[] { "StartDate" };
if (StartDate > DateTime.Now || StartDate < new DateTime(2000, 1, 1))
yield return new ValidationResult("Please enter a valid date.", fields);
if (Rating > 4 && StartDate < new DateTime(2003, 1, 1))
yield return new ValidationResult("Accepted date should be greater than 2003", fields);
}
}
}
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
var info = validationContext.ObjectType.GetProperty("Rating");
//...
return ValidationResult.Success;
}
using System;
using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;
using System.Collections.Generic;
namespace MvcApplication9.CustomValidators
{
public class MyDateValidator : ValidationAttribute, IClientValidatable
{
// ... same as before
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(
ModelMetadata metadata,
ControllerContext context)
{
var rule = new ModelClientValidationRule
{
ValidationType = "mydatevalidator",
ErrorMessage = FormatErrorMessage(metadata.GetDisplayName())
};
yield return rule;
}
}
}
/// <reference path="jquery-1.5.1-vsdoc.js" />
/// <reference path="jquery.validate-vsdoc.js" />
/// <reference path="jquery.validate.unobtrusive.js" />
jQuery.validator.addMethod("mydatevalidator",
function (value, element, param) {
return Date.parse(value) < new Date();
});
jQuery.validator.unobtrusive.adapters.addBool("mydatevalidator");
<script src="@Url.Content("~/Scripts/customvaildation.js")" type="text/javascript"></script>
1. .field-validation-error
2. .field-validation-valid
3. .input-validation-error
4. .input-validation-valid
5. .validation-summary-errors
6. .validation-summary-valid
[MetadataType(typeof(CustomerMetadata))]
public partial class Customer
{
class CustomerMetadata
{
}
}
public partial class Customer : IValidatableObject
{
[Required(ErrorMessage = "Name is required.")]
[StringLength(50)]
[System.Web.Mvc.Remote(action: "CheckUserNameAndEmail",
controller: "Customer",
AdditionalFields = "Email",
HttpMethod = "POST",
ErrorMessage = "Username is not available.")]
public string Name { set; get; }
[HttpPost]
[OutputCache(Location = OutputCacheLocation.None, NoStore = true)]
public ActionResult CheckUserNameAndEmail(string name, string email)
{
if (name.ToLowerInvariant() == "vahid") return Json(false);
if (email.ToLowerInvariant() == "name@site.com") return Json(false);
//...
return Json(true);
}
using System.ComponentModel.DataAnnotations;
namespace MvcApplication9.Helper
{
public static class ValidationHelper
{
public static bool TryValidateObject(this object instance)
{
return Validator.TryValidateObject(instance, new ValidationContext(instance, null, null), null);
}
}
}
ضمنا، موضوع بحث مطلب جاری «نصب و راه اندازی» است. هر دوره یک قسمت پرسش و پاسخ جداگانه هم دارد.
در ویژوال استودیو قابلیت تعیین نوع مرورگر به صورت دلخواه جهت اجرای پروژه وب وجود دارد. لازم به ذکر است فقط لیست مروگرهای قابل رویت است که شما قبلاً آنها را بر روی سیستم خود نصب نموده‌اید و یا آنکه به صورت شخصی سازی یک Web Browser تعریف شده باشد...
npm install -g eslint
eslint --init
? How would you like to configure ESLint? Answer questions about your style ? Are you using ECMAScript 6 features? Yes ? Are you using ES6 modules? Yes ? Where will your code run? Browser, Node ? Do you use CommonJS? No ? Do you use JSX? No ? What style of indentation do you use? Spaces ? What quotes do you use for strings? Double ? What line endings do you use? Windows ? Do you require semicolons? Yes ? What format do you want your config file to be in? JSON Successfully created .eslintrc.json file in D:\ali\electron
eslint . یا eslint index.js
{
"name": "electron",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "electron .",
"test":"eslint ."
},
"author": "",
"license": "ISC"
} npm test
D:\ali\electron\index.js 1:26 error Strings must use doublequote quotes 16:8 error Strings must use doublequote quotes 19:3 error Expected indentation of 4 space characters but found 2 indent 22:3 error Expected indentation of 4 space characters but found 2 indent ✖ 4 problems (4 errors, 0 warnings)
setText('test');
getText(); .text([text]);
npm install
ng add @angular/PWA
ng build -- prod
cd dist/Web Application Pwa
Http-server -o
npm i http-server
"$schema": "./node_modules/@angular/service-worker/config/schema.json",
"index": "/index.html",
"assetGroups": [
{
"name": "app",
"installMode": "prefetch",
"resources": {
"files": [
"/favicon.ico",
"/index.html",
"/*.css",
"/*.js"
]
}
}, {
"name": "assets",
"installMode": "lazy",
"updateMode": "prefetch",
"resources": {
"files": [
"/assets/**",
"/*.(eot|svg|cur|jpg|png|webp|gif|otf|ttf|woff|woff2|ani)"
]
}
}
],
"dataGroups": [
{
"name": "api-performance",
"urls": [
"https://api/**"
],
"cacheConfig": {
"strategy": "performance",
"maxSize": 100,
"maxAge": "3d"
}
}
]
} "https://api/**"
if(this.swUpdate.isEnabled)
{
this.swUpdate.available.subscribe(()=> {
if(confirm("New Version available.Load New Version?")){
window.location.reload();
}
})
}
Age :number Fullname :string Mobile : string
npm install --save firebase @angular/fire
@NgModule({
declarations: [AppComponent, RegisterComponent,AboutComponent, UserListComponent],
imports: [
BrowserModule,
FormsModule,
HttpClientModule,
HttpClientModule,
SharedModule,
AppRoutingModule,
AngularFireModule.initializeApp(environmentFirebase.firebase),
AngularFireDatabaseModule,
ServiceWorkerModule.register('ngsw-worker.js', { enabled: environment.production }),
],
providers: [FirebaseService],
bootstrap: [AppComponent]
})
export class AppModule {} export const environment ={
production: true,
firebase: {
apiKey: "AIz×××××××××××××××××××××××××××××××××8",
authDomain: "pwaangular-6c041.firebaseapp.com",
databaseURL: "https://pwaangular-6c041.firebaseio.com",
projectId: "pwaangular-6c041",
storageBucket: "pwaangular-6c041.appspot.com",
messagingSenderId: "545522081966"
}
} import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import * as firebase from 'firebase';
import { AngularFireDatabase } from '@angular/fire/database';
import { HttpClient } from '@angular/common/http';
import { map } from 'rxjs/operators';
import { ThrowStmt } from '@angular/compiler';
@Injectable({
providedIn: 'root'
})
export class FirebaseService {
ref = firebase.firestore().collection('users');
constructor(public db: AngularFireDatabase,public _http:HttpClient) {
}
getUsers(): Observable<any> {
return new Observable((observer) => {
this.ref.onSnapshot((querySnapshot) => {
let User = [];
querySnapshot.forEach((doc) => {
let data = doc.data();
User.push({
key: doc.id,
fullname: data.fullname,
age: data.age,
mobile: data.mobile
});
});
observer.next(User);
});
});
}
getUser(id: string): Observable<any> {
return new Observable((observer) => {
this.ref.doc(id).get().then((doc) => {
let data = doc.data();
observer.next({
key: doc.id,
title: data.title,
description: data.description,
author: data.author
});
});
});
}
postUser(user): Observable<any> {
return new Observable((observer) => {
this.ref.add(user).then((doc) => {
observer.next({
key: doc.id,
});
});
});
}
updateUser(id: string, data): Observable<any> {
return new Observable((observer) => {
this.ref.doc(id).set(data).then(() => {
observer.next();
});
});
}
deleteUser(id: string): Observable<{}> {
return new Observable((observer) => {
this.ref.doc(id).delete().then(() => {
observer.next();
});
});
}
getDataOnApi(){
return this._http.get('https://site.com/api/General/Getprovince')
.pipe(
map((res: Response) => {
return res;
})
);
}
getOnApi(){
return this._http.get("https://site.com/api/General/Getprovince",).pipe(
map((response:any) => {
return response
} )
);
}
} ng build --prod cd dist/Pwa-WepApp Http-server -o
<Route
path="/movies"
render={props => <Movies {...props} user={this.state.currentUser} />}
/> <Route path="/movies/:id" component={MovieForm} /> <Route
path="/movies/:id"
render={props => {
if (!this.state.currentUser) {
return <Redirect to="/login" />;
}
return <MovieForm {...props} />;
}}
/> import React from "react";
import { Route, Redirect } from "react-router-dom";
import * as auth from "../../services/authService";
const ProtectedRoute = ({ path, component: Component, render, ...rest }) => {
return (
<Route
{...rest}
render={props => {
if (!auth.getCurrentUser())
return (
<Redirect
to={{
pathname: "/login",
state: { from: props.location }
}}
/>
);
return Component ? <Component {...props} /> : render(props);
}}
/>
);
};
export default ProtectedRoute; import ProtectedRoute from "./components/common/protectedRoute";
// ...
<ProtectedRoute path="/movies/:id" component={MovieForm} /> return (
<Route
{...rest}
render={props => {
console.log(props); 
<Redirect
to={{
pathname: "/login",
state: { from: props.location }
}}
/> doSubmit = async () => {
try {
const { data } = this.state;
await auth.login(data.username, data.password);
const { state } = this.props.location;
window.location = state ? state.from.pathname : "/";
} catch (ex) {
//... import { Redirect } from "react-router-dom";
//...
render() {
if (auth.getCurrentUser()) return <Redirect to="/" />;