"use strict";

var person = {
    name: "Vahid Mohammad Taheri"
};

Object.seal(person);
person.age = 27;    // Error!

var proxy = new Proxy({ name: "Vahid" }, {
    get: function(target, property) {
        if (property in target) {
            return target[property];
        } else {
            return 13;
        }
    }
});

console.log(proxy.time);        // 13
console.log(proxy.name);        // "Vahid"
console.log(proxy.title);       // 13

function createDefensiveObject(target) {

    return new Proxy(target, {
        get: function(target, property) {
            if (property in target) {
                return target[property];
            } else {
                throw new ReferenceError("Property \"" + property + "\" does not exist.");
            }
        }
    });
}

var person = {
    name: "Vahid"
};

var defensivePerson = createDefensiveObject(person);

console.log(defensivePerson.name);        // "Vahid"
console.log(defensivePerson.age);         // Error!

var person = {
    name: "Vahid"
};

var defensivePerson = createDefensiveObject(person);

console.log(defensivePerson.name);        // "Vahid"

defensivePerson.age = 13;
console.log(defensivePerson.age);         // 13

var person = {
    name: "Vahid"
};

var defensivePerson = createDefensiveObject(person);

console.log("name" in defensivePerson);               // true
console.log(defensivePerson.hasOwnProperty("name"));  // true

console.log("age" in defensivePerson);                // false
console.log(defensivePerson.hasOwnProperty("age"));   // false

var person = {
    name: "Vahid"
};

Object.preventExtensions(person);

var defensivePerson = createDefensiveObject(person);


defensivePerson.age = 27;                 // Error!
console.log(defensivePerson.age);         // Error!

function Person(name) {
    this.name = name;

    return createDefensiveObject(this);
}

var person = new Person("Vahid");
console.log(person.age);         // Error!

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namespace KendoUI07.Models
{
    public class Registration
    {
        public int Id { set; get; }
        public string UserName { set; get; }
        public string CourseName { set; get; }
        public int Credit { set; get; }
        public string Email { set; get; }
        public string Tel { set; get; }
    }
}

    <script type="text/javascript">
        $(function () {
            var model = kendo.data.Model.define({
                id: "Id",
                fields: {
                    Id: { type: 'number' }, // leave this set to 0 or undefined, so Kendo knows it is new.
                    UserName: { type: 'string' },
                    CourseName: { type: 'string' },
                    Credit: { type: 'number' },
                    Email: { type: 'string' },
                    Tel: { type: 'string' }
                }
            });
        });
    </script>

    <script type="text/javascript">
        $(function () {
            var viewModel = kendo.observable({
                accepted: false,
                course: new model()
            });
        });
    </script>

    <script type="text/javascript">
        $(function () {
            var model = kendo.data.Model.define({
            // ...
            });

            var viewModel = kendo.observable({
            // ...
            });

            kendo.bind($("#coursesSection"), viewModel);
        });
    </script>

<input type="text" id="UserName" name="UserName" class="k-textbox"
       data-bind="value:course.UserName"
       required />

<input type="checkbox" name="Accept"
       data-bind="checked:accepted"
       required />

<button class="k-button"
        data-bind="enabled: accepted, click: doSave"
        type="submit">
       ارسال
</button>

    <script type="text/javascript">
        $(function () {
            var model = kendo.data.Model.define({
                //...
            });

            var dataSource = new kendo.data.DataSource({
                type: 'json',
                transport: {
                    read: {
                        url: "api/registrations",
                        dataType: "json",
                        contentType: 'application/json; charset=utf-8',
                        type: 'GET'
                    },
                    create: {
                        url: "api/registrations",
                        contentType: 'application/json; charset=utf-8',
                        type: "POST"
                    },
                    update: {
                        url: function (course) {
                            return "api/registrations/" + course.Id;
                        },
                        contentType: 'application/json; charset=utf-8',
                        type: "PUT"
                    },
                    destroy: {
                        url: function (course) {
                            return "api/registrations/" + course.Id;
                        },
                        contentType: 'application/json; charset=utf-8',
                        type: "DELETE"
                    },
                    parameterMap: function (data, type) {
                        // Convert to a JSON string.  Without this step your content will be form encoded.
                        return JSON.stringify(data);
                    }
                },
                schema: {
                    model: model
                },
                error: function (e) {
                    alert(e.errorThrown);
                },
                change: function (e) {
                    // فراخوانی در زمان دریافت اطلاعات از سرور و یا تغییرات محلی
                    viewModel.set("coursesDataSourceRows", new kendo.data.ObservableArray(this.view()));
                }
            });

            var viewModel = kendo.observable({
                //...
            });

            kendo.bind($("#coursesSection"), viewModel);
            dataSource.read(); // دریافت لیست موجود از سرور در آغاز کار
        });
    </script>

    <script type="text/javascript">
        $(function () {
            $("#coursesSection").kendoValidator({
                // ...
            });

            var model = kendo.data.Model.define({
                // ...
            });

            var dataSource = new kendo.data.DataSource({
                // ...
            });

            var viewModel = kendo.observable({
                accepted: false,
                course: new model(),
                doSave: function (e) {
                    e.preventDefault();
                    console.log("this", this.course);
                    var validator = $("#coursesSection").data("kendoValidator");
                    if (validator.validate()) {
                        if (this.course.Id == 0) {
                            dataSource.add(this.course);
                        }
                        dataSource.sync(); // push to the server
                        this.set("course", new model()); // reset controls
                    }
                },
                resetModel: function (e) {
                    e.preventDefault();
                    this.set("course", new model());
                }            
             });

            kendo.bind($("#coursesSection"), viewModel);
            dataSource.read(); // دریافت لیست موجود از سرور در آغاز کار
        });
    </script>

<button class="k-button"
        data-bind="enabled: accepted, click: doSave"
        type="submit">
       ارسال
</button>
<button class="k-button" data-bind="click: resetModel">از نو</button>

using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using KendoUI07.Models;

namespace KendoUI07.Controllers
{
    public class RegistrationsController : ApiController
    {
        public HttpResponseMessage Delete(int id)
        {
            var item = RegistrationsDataSource.LatestRegistrations.FirstOrDefault(x => x.Id == id);
            if (item == null)
                return Request.CreateResponse(HttpStatusCode.NotFound);

            RegistrationsDataSource.LatestRegistrations.Remove(item);
            return Request.CreateResponse(HttpStatusCode.OK, item);
        }

        public IEnumerable<Registration> Get()
        {
            return RegistrationsDataSource.LatestRegistrations;
        }

        public HttpResponseMessage Post(Registration registration)
        {
            if (!ModelState.IsValid)
                return Request.CreateResponse(HttpStatusCode.BadRequest);

            var id = 1;
            var lastItem = RegistrationsDataSource.LatestRegistrations.LastOrDefault();
            if (lastItem != null)
            {
                id = lastItem.Id + 1;
            }
            registration.Id = id;
            RegistrationsDataSource.LatestRegistrations.Add(registration);

            // ارسال آی دی مهم است تا از ارسال رکوردهای تکراری جلوگیری شود
            return Request.CreateResponse(HttpStatusCode.Created, registration);
        }

        [HttpPut] // Add it to fix this error: The requested resource does not support http method 'PUT'
        public HttpResponseMessage Update(int id, Registration registration)
        {
            var item = RegistrationsDataSource.LatestRegistrations
                                        .Select(
                                            (prod, index) =>
                                                new
                                                {
                                                    Item = prod,
                                                    Index = index
                                                })
                                        .FirstOrDefault(x => x.Item.Id == id);
            if (item == null)
                return Request.CreateResponse(HttpStatusCode.NotFound);


            if (!ModelState.IsValid || id != registration.Id)
                return Request.CreateResponse(HttpStatusCode.BadRequest);

            RegistrationsDataSource.LatestRegistrations[item.Index] = registration;
            return Request.CreateResponse(HttpStatusCode.OK);
        }
    }
}

    <script type="text/javascript">
        $(function () {
            // ...
            var viewModel = kendo.observable({
                accepted: false,
                course: new model(),
                coursesDataSourceRows: new kendo.data.ObservableArray([]),
                doSave: function (e) {
                       // ...
                },
                resetModel: function (e) {
                      // ...
                },
                totalPrice: function () {
                    var sum = 0;
                    $.each(this.get("coursesDataSourceRows"), function (index, item) {
                        sum += item.Credit;
                    });
                    return sum;
                },
                deleteCourse: function (e) {
                    // the current data item is passed as the "data" field of the event argument
                    var course = e.data;
                    dataSource.remove(course);
                    dataSource.sync(); // push to the server
                },
                editCourse: function(e) {
                    // the current data item is passed as the "data" field of the event argument
                    var course = e.data;
                    this.set("course", course);
                }
            });

            kendo.bind($("#coursesSection"), viewModel);
            dataSource.read(); // دریافت لیست موجود از سرور در آغاز کار
        });
    </script>

    <script type="text/javascript">
        $(function () {
            var dataSource = new kendo.data.DataSource({
                //...
                change: function (e) {
                    // فراخوانی در زمان دریافت اطلاعات از سرور و یا تغییرات محلی
                    viewModel.set("coursesDataSourceRows", new kendo.data.ObservableArray(this.view()));
                }
            });
        });
    </script>

let add x y = x + y
let result = add 4 5
printfn "(add 4 5) = %i" result

let add x y = x + y
let result1 = add 4 5
let result2 = add 6 7
let finalResult = add result1 result2

let add x y = x + y
let result =add (add 4 5) (add 6 7)

let cylinderVolume radius length : float =
   
   let pi = 3.14159
   length * pi * radius * radius

let sign num =
    if num > 0 then "positive"
    elif num < 0 then "negative"
    else "zero"

let replace(str: string) =
    str.Replace("A", "a")

let addu1 (x : uint32) y =
    x + y

let (|>) x f = f x

let result = 0.5 |> System.Math.Cos

let add x y = x + y
let result = add 6 7 |> add 4 |> add 5

let result = add 6 7 |> add 4

let sub (a, b) = a - b
let subFour = sub 4

prog.fs(15,19): error: FS0001: This expression has type
int
but is here used with type
'a * 'b

let rec fib x =
match x with
| 1 -> 1
| 2 -> 1
| x -> fib (x - 1) + fib (x - 2)


printfn "(fib 2) = %i" (fib 2)
printfn "(fib 6) = %i" (fib 6)
printfn "(fib 11) = %i" (fib 11) 

(fib 2) = 1
(fib 6) = 8
(fib 11) = 89

let rec Even x =
   if x = 0 then true 
   else Odd (x - 1)
and Odd x =
   if x = 1 then true 
   else Even (x - 1)

let firstFunction x = x + 1
let secondFunction x = x * 2
let newFunction = firstFunction >> secondFunction
let result = newFunction 100

let sumOfDivisors n =
    let rec loop current max acc =

//شروع تابع داخلی

   if current > max then
            acc
        else
            if n % current = 0 then
                loop (current + 1) max (acc + current)
            else
                loop (current + 1) max acc

//ادامه بدنه تابع اصلی

 let start = 2
    let max = n / 2     (* largest factor, apart from n, cannot be > n / 2 *)
    let minSum = 1 + n  (* 1 and n are already factors of n *)
    loop start max minSum
 
printfn "%d" (sumOfDivisors 10)

  if current > max then
            acc
        else
            if n % current = 0 then
                loop (current + 1) max (acc + current)
            else
                loop (current + 1) max acc

open System
open System.Windows.Forms

let form1 = new Form()
form1.Text <- "XYZ"

[<STAThread>]
do
   Application.Run(form1)

What's new in this release?

• Full C#7.0 support
• .NET Core support

Web Payments is an emerging web standard being developed by the W3C to simplify online payments and enable a broader set of players to participate easily in the payments ecosystem on the web. The standards are flexible; they work with various types of payment systems and are intended to work on any browser on any device, payment method, or payment service provider. This flexibility enables development simplicity, deployment consistency, and future compatibility with emerging payment technologies.