localForage is a fast and simple storage library for JavaScript.localForage uses localStorage in browsers with no IndexedDB or WebSQL.

localforage.setItem('key', 'value', function (err) {
  // if err is non-null, we got an error
  localforage.getItem('key', function (err, value) {
    // if err is non-null, we got an error. otherwise, value is the value
  });
});

:Framework Support

AngularJS

  Angular 4 and up

  Backbone

  Ember

  Vue 

TypeScript:

import localForage from "localforage"; 

  handleDelete = async post => {
    const posts = this.state.posts.filter(item => item.id !== post.id);
    this.setState({ posts });

    await axios.delete(`${apiEndpoint}/${post.id}`);
  };

  handleDelete = async post => {
    const originalPosts = this.state.posts;

    const posts = this.state.posts.filter(item => item.id !== post.id);
    this.setState({ posts }); // Optimistic Update

    try {
      await axios.delete(`${apiEndpoint}/${post.id}`);
    } catch (ex) {
      alert("An error occurred when deleting a post!");
      this.setState({ posts: originalPosts }); // Undo changes
    }
  };

try {
  await axios.delete(`${apiEndpoint}/${post.id}`);
} catch (ex) {
  if (ex.response && ex.response.status === 404) {
     alert("This post has already been deleted!");
  } else {
     console.log("Error", ex);
     alert("An unexpected error occurred when deleting a post!");
  }

  this.setState({ posts: originalPosts }); // Undo changes
}

import "./App.css";

import axios from "axios";
import React, { Component } from "react";

axios.interceptors.response.use(null, error => {
  console.log("interceptor called.");
  return Promise.reject(error);
});

const apiEndpoint = "https://localhost:5001/api/posts";
class App extends Component {

axios.interceptors.response.use(null, error => {
  const expectedError =
    error.response &&
    error.response.status >= 400 &&
    error.response.status < 500;

  if (!expectedError) {
    console.log("Error", error);
    alert("An unexpected error occurred when deleting a post!");
  }

  return Promise.reject(error);
});

import axios from "axios";

axios.interceptors.response.use(null, error => {
  const expectedError =
    error.response &&
    error.response.status >= 400 &&
    error.response.status < 500;

  if (!expectedError) {
    console.log("Error", error);
    alert("An unexpected error occurred when deleting a post!");
  }

  return Promise.reject(error);
});

export default {
  get: axios.get,
  post: axios.post,
  put: axios.put,
  delete: axios.delete
};

import http from "./services/httpService";

{
   "apiEndpoint" : "https://localhost:5001/api/posts"
}

import config from "./config.json";

> npm i react-toastify --save

import { ToastContainer } from "react-toastify";
import "react-toastify/dist/ReactToastify.css";

  render() {
    return (
      <React.Fragment>
        <ToastContainer />

import { toast } from "react-toastify";
// ...

axios.interceptors.response.use(null, error => {
  // ...
  if (!expectedError) {
    // ...
    toast.error("An unexpected error occurrred.");
  }

PM> Install-Package xDav

<system.webServer>
        <modules>
            <add name="XDav" type="XDav.XDavModule, XDav" />
        </modules>
  </system.webServer>

  <XDavConfig Name="xdav">
    <FileLocation URL="xdav" PathType="Local"></FileLocation>
  </XDavConfig>

  ms-word:ofe|u|http://Webaddress/xdav/filename

public class DavFile
    {
        public string Name { get; set; }
        
        public string Href(string webAddress)
        {
            return string.Format("ms-word:ofe|u|http://{0}/xdav/{1}", webAddress, Name);
        }
    }

var dir = new DirectoryInfo(XDav.Config.ConfigManager.DavPath);
            var model = dir.GetFiles().ToList()
                                      .Select(f => 
                                          new DavFile() { 
                                            Name = f.Name
                                        });
            return View(model);

@model IEnumerable<WebDavServer.Models.DavFile>
<h1>
    File List
</h1>

<ul>
    @foreach (var item in Model)
    {
        <li> <a href="@Html.Raw(item.Href(ViewContext.HttpContext.Request.Url.Authority))">  @Html.Raw(item.Name) </a></li>
    }
</ul>

<div id="dynamicContentContainer"></div>
<script>   
    $.get('@Url.Action("GetData", "Home")', {id : 1}, function(content){
            $("#dynamicContentContainer").html(content);
        });
</script>

[HttpGet]
public IActionResult GetData(int id)
{
   return PartialView(id);
}

@model int 
<span>Values from controler :</span> @Model

public class CustomProfile
    {
        [Required(ErrorMessage="*")]
        [StringLength(50)]
        [System.Web.Mvc.Remote(action: "CheckUserName",
                                       controller: "User",
                                       HttpMethod = "POST",
                                       ErrorMessage = "این نام کاربری وجود دارد")]
        public string Username{ get; set; }
        [Required(ErrorMessage = "*")]
        public string Password{ get; set; }
        [Required(ErrorMessage = "*")]
        public string FirstName{ get; set; }
        [Required(ErrorMessage = "*")]
        public string LastName{ get; set; }
        
        [Required(ErrorMessage = "*")]
        [StringLength(10, ErrorMessage = "کدملی باید 10 رقم باشد")]
        public string NationalCode { get; set; }
        [Required(ErrorMessage = "*")]
        public string Address { get; set; }

        [RegularExpression(@"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*",
                           ErrorMessage = "آدرس ایمیل معتبر نیست")]
        [System.Web.Mvc.Remote(action: "CheckEmail",
                                       controller: "User",
                                       AdditionalFields = "Username",
                                       HttpMethod = "POST",
                                       ErrorMessage = "این ایمیل وجود دارد")]
        public string Email{ get; set; }

        [StringLength(11, ErrorMessage = "تلفن باید 11 رقم باشد")]
        public string PhoneNo{ get; set; }

        [StringLength(11, ErrorMessage = "موبایل باید 11 رقم باشد")]
        public string MobileNo{ get; set; }
        
        
        public string[] Roles{ get; set; }
        
        public string LastActivityDate{ get; set; }
        public string LastLoginDate { get; set; }
        public string CreationDate { get; set; }
        public bool IsLockedOut{ get; set; }
    }

@model Sama.Models.CustomProfile
@{
    ViewBag.Title = "Create";
    Layout = "~/Views/Shared/_Layout.cshtml";
    
}
<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(actionName: "Create", controllerName: "User"))
    {
        @Html.ValidationSummary(true)
     
        <fieldset>
            <legend>کاربر جدید</legend>
            <div>
                <table>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.Username, "نام کاربری")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.EditorFor(model => model.Username)
                                @Html.ValidationMessageFor(model => model.Username)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.Password, "کلمه عبور")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.PasswordFor(model => model.Password)
                                @Html.ValidationMessageFor(model => model.Password)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.FirstName, "نام")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.EditorFor(model => model.FirstName)
                                @Html.ValidationMessageFor(model => model.FirstName)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.LastName, "نام خانوادگی")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.EditorFor(model => model.LastName)
                                @Html.ValidationMessageFor(model => model.LastName)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.NationalCode, "کد ملی")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.EditorFor(model => model.NationalCode)
                                @Html.ValidationMessageFor(model => model.NationalCode)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.Email, "ایمیل")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.EditorFor(model => model.Email)
                                @Html.ValidationMessageFor(model => model.Email)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.PhoneNo, "تلفن")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.EditorFor(model => model.PhoneNo)
                                @Html.ValidationMessageFor(model => model.PhoneNo)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.MobileNo, "موبایل")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.EditorFor(model => model.MobileNo)
                                @Html.ValidationMessageFor(model => model.MobileNo)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div>
                                @Html.LabelFor(model => model.Address, "آدرس")
                            </div>
                        </td>
                        <td>
                            <div>
                                @Html.TextAreaFor(model => model.Address, 5, 30, null)
                                @Html.ValidationMessageFor(model => model.Address)
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            نقش‌ها </td>
                        <td>
                            @Helper.CheckBoxList("Roles", (List<SelectListItem>)ViewBag.Roles)
                        </td>
                    </tr>
                    <tr>
                        <td>
                        </td>
                        <td>
                            <input type="submit" value="ذخیره" class="btn btn-primary" />
                        </td>
                    </tr>
                </table>
            </div>
        </fieldset>
    
    }