js -移花宫 -武林禁地，闲人禁止入内

Warming Up With Ember.js

Ember Course Demo/EmberCourseDemo-master.zip 2.1 MB
Level 1 - Warming Up/1. Getting Started.mp4 98.0 MB
Level 1 - Warming Up/2. The Application.mp4 50.9 MB
Level 1 - Warming Up/3. The Router.mp4 91.6 MB
Level 2 - Rendering the Flame/1. Handlebars Helpers.mp4 57.5 MB
Level 2 - Rendering the Flame/2. Controller Basics.mp4 81.3 MB
Level 3 - A Route Through the Woods/1. Resource Routes.mp4 93.4 MB
Level 3 - A Route Through the Woods/2. Dynamic Routes.mp4 65.3 MB
Level 3 - A Route Through the Woods/3. Nested Routes.mp4 80.8 MB
Level 4 - Acorn Models and Pinecone Data/1. Models and Ember Data.mp4 80.0 MB
Level 4 - Acorn Models and Pinecone Data/2. Models and Ember Data.mp4 74.2 MB
Level 5 - Controlling Our Growth/1. Controlling Our Growth.mp4 49.3 MB
Level 5 - Controlling Our Growth/2. Controlling Our Growth.mp4 52.7 MB
Level 5 - Controlling Our Growth/3. Controlling Our Growth.mp4 82.2 MB
Level 6 - The Template Forest/1. Components.mp4 38.7 MB
Level 6 - The Template Forest/2. Component Objects.mp4 67.2 MB
Level 6 - The Template Forest/3. Handlebars Rendering Helpers.mp4 27.0 MB
Level 6 - The Template Forest/4. Partials.mp4 45.9 MB
Level 6 - The Template Forest/5. Render.mp4 38.0 MB
Level 7 - Acting on Instinct/1. Acting on Instinct.mp4 71.3 MB

[磁力链接] 添加时间:2017-02-08 大小:1.5 GB 最近下载:2025-07-03 热度:1100

[jsexpert] [Александр Кириченко] Фундаментальный курс Node.js

23 Введение и инсталяция MongoDB. Работа с Mlab и консолью.mp4 142.6 MB
25 Агрегация в MongoDB.mp4 139.3 MB
20 Mongoose. практическое занятие.mp4 133.8 MB
24 Модели данных в MongoDB. Запросы и CRUD операции.mp4 129.3 MB
14 Простейший интерфейс.mp4 118.1 MB
22 REST-API security.mp4 82.5 MB
13 Rest API.mp4 66.3 MB
04 Установка Node.js.mp4 66.2 MB
21 Mongoose. Error handling.mp4 61.6 MB
19 Middleware и Population.mp4 54.3 MB
05 Определение и загрузка.mp4 47.5 MB
01 Введение в NodeJS.mp4 45.0 MB
17 Документы и валидация Mongoose.mp4 43.5 MB
15 Схемы и модели.mp4 43.1 MB
16 Cоединение с MongoDB.mp4 42.7 MB
12 Типы Middleware. Views в Express.mp4 32.9 MB
18 Запросы в Mongoose.mp4 32.8 MB
03 Особенности архитектуры.mp4 29.7 MB
11 Express middleware.mp4 27.7 MB
07 Практические примеры.mp4 25.5 MB

[磁力链接] 添加时间:2021-03-09 大小:1.5 GB 最近下载:2025-07-04 热度:3744

07-JS原生框架-第5天

4-源代码/code/.git/COMMIT_EDITMSG 19 Bytes
4-源代码/code/.git/HEAD 23 Bytes
4-源代码/code/.git/refs/heads/dev-next 41 Bytes
4-源代码/code/.git/refs/heads/master 41 Bytes
4-源代码/code/.git/refs/heads/dev-siblings 41 Bytes
4-源代码/code/.git/refs/heads/dev-prev-all 41 Bytes
4-源代码/code/.git/refs/heads/dev-parent 41 Bytes
4-源代码/code/.git/refs/heads/dev-insertAfter 41 Bytes
4-源代码/code/.git/refs/heads/dev-before 41 Bytes
4-源代码/code/.git/refs/heads/dev-after 41 Bytes
4-源代码/code/.git/ORIG_HEAD 41 Bytes
4-源代码/code/.git/refs/heads/dev-nextAll 41 Bytes
1-教学资料/preview/toc/css/zTreeStyle/img/line_conn.gif 45 Bytes
4-源代码/code/.git/description 73 Bytes
4-源代码/code/.git/objects/de/f583afeb9e7e473f775b716d888063db4914d3 127 Bytes
4-源代码/code/.git/config 130 Bytes
4-源代码/code/.git/objects/29/bc6965a8357068c3be18fa5fe6741b40f81d7e 133 Bytes
4-源代码/code/.git/objects/3d/293184a324bb124aaa33dfa012c5110ab85cd9 134 Bytes
4-源代码/code/.git/logs/refs/heads/dev-prev-all 152 Bytes
4-源代码/code/.git/objects/f5/9715fbf55b308793cc8aafca418c78dff6d51c 169 Bytes

[磁力链接] 添加时间:2017-06-09 大小:1.5 GB 最近下载:2021-04-02 热度:5

180507 스위치베리(SwitchBerry) 광주왕실도자기축제 직캠 By pharkil, JS

180507 스위치베리(Switch berry) 스위치 음료수 및 CD 선물 이벤트#2 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 158.9 MB
180507 스위치베리(Switch berry) 피에스타로카(하나) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 154.0 MB
180507 스위치베리(Switch berry) cover-What is Love(지민) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 125.5 MB
180507 스위치베리(Switch berry) cover-What is Love(민아) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 121.8 MB
180507 스위치베리(Switch berry) cover-뿜뿜(연이) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 114.7 MB
180507 스위치베리(Switch berry) cover-뿜뿜(지민) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 114.0 MB
180507 스위치베리(Switch berry) cover-24시간(지민#2) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 101.7 MB
180507 스위치베리(Switch berry) cover-Pick Me(지민) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 95.9 MB
180507 스위치베리(Switch berry) cover-Pick Me(하나) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 95.0 MB
180507 스위치베리(Switch berry) cover-사랑을 했다(지민) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 91.7 MB
180507 스위치베리(Switch berry) cover-사랑을 했다(하나) 광주왕실도자기축제 KPOP by JS 직캠(fancam).mkv 79.5 MB
[직캠 Fancam] 180507 스위치베리(SwitchBerry) (하나) 피에스타로카(Fiestaloca) @ 광주왕실도자기축제.mkv 63.6 MB
[직캠 Fancam] 180507 스위치베리(SwitchBerry) (하나) 트와이스-What Is Love @ 광주왕실도자기축제.mkv 50.8 MB
[직캠 Fancam] 180507 스위치베리(SwitchBerry) (하나) 뿜뿜 @ 광주왕실도자기축제.mkv 47.4 MB
[직캠 Fancam] 180507 스위치베리(SwitchBerry) (하나) 24시간 @ 광주왕실도자기축제.mkv 42.6 MB

[磁力链接] 添加时间:2018-09-13 大小:1.5 GB 最近下载:2025-03-10 热度:197

[ CourseWikia.com ] Learn Nuxt.js by Building a Real World App (Complete Package) (Updated 02 - 2021).zip

[ CourseWikia.com ] Learn Nuxt.js by Building a Real World App (Complete Package) (Updated 02 - 2021).zip 1.5 GB

[磁力链接] 添加时间:2022-02-16 大小:1.5 GB 最近下载:2025-07-04 热度:1401

[ FreeCourseWeb.com ] Udemy - Build Node.js apps with AWS DynamoDB & Docker containers.zip

[ FreeCourseWeb.com ] Udemy - Build Node.js apps with AWS DynamoDB & Docker containers.zip 1.5 GB

[磁力链接] 添加时间:2021-05-22 大小:1.5 GB 最近下载:2025-07-01 热度:289

[ FreeCourseWeb.com ] TutsPlus - Creating Custom Presentation Themes for Reveal.js

~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.7 Finishing Touches.mp4 600.3 MB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.5 Set a Custom Scaling and Position the Footer.mp4 190.7 MB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.6 Style the Layouts Properly.mp4 170.9 MB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.3 Set the Typography.mp4 145.1 MB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.1 Installing Reveal.js and Creating a Custom Theme File.mp4 127.5 MB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.4 Set the Colours.mp4 104.8 MB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.2 A Quick Look at the Theme We’ll Build.mp4 93.6 MB
~Get Your Files Here !/1. Introduction/1.1 Welcome to the Course.mp4 21.0 MB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.7 Finishing Touches.vtt 27.3 kB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.5 Set a Custom Scaling and Position the Footer.vtt 9.2 kB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.6 Style the Layouts Properly.vtt 8.4 kB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.3 Set the Typography.vtt 6.7 kB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.1 Installing Reveal.js and Creating a Custom Theme File.vtt 6.2 kB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.2 A Quick Look at the Theme We’ll Build.vtt 4.5 kB
~Get Your Files Here !/2. Creating Custom Themes for Reveal. js/2.4 Set the Colours.vtt 4.5 kB
~Get Your Files Here !/1. Introduction/1.1 Welcome to the Course.vtt 1.2 kB
~Get Your Files Here !/Bonus Resources.txt 357 Bytes
Get Bonus Downloads Here.url 183 Bytes

[磁力链接] 添加时间:2025-03-04 大小:1.5 GB 最近下载:2025-04-23 热度:27

udemy-node.js-advanced-concepts

[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/04 Data Caching with Redis/053 The Ultimate Caching Solution.mp4 38.0 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/05 Automated Headless Browser Testing/089 WaitFor Statements.mp4 33.0 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/02 Enhancing Node Performance/033 Worker Threads in Action.mp4 29.2 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/02 Enhancing Node Performance/029 Need More Children.mp4 28.8 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/05 Automated Headless Browser Testing/079 Asserting OAuth Flow.mp4 27.9 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/04 Data Caching with Redis/063 Toggleable Cache.mp4 26.7 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/06 Wiring Up Continuous Integration/130 More Server Configuration.mp4 24.8 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/05 Automated Headless Browser Testing/084 Inner Workings of Sessions.mp4 22.8 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/04 Data Caching with Redis/052 Caching Issues.mp4 21.6 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/05 Automated Headless Browser Testing/086 Session Signatures.mp4 21.0 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/04 Data Caching with Redis/054 Patching Mongooses Exec.mp4 20.4 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/04 Data Caching with Redis/061 Hydrating Models.mp4 19.9 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/07 Scalable ImageFile Upload/156 GetSignedURL Arguments.mp4 19.6 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/01 The Internals of Node/020 Unexpected Event Loop Events.mp4 19.0 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/01 The Internals of Node/008 Event Loop Ticks.mp4 18.4 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/04 Data Caching with Redis/060 Resolving Values.mp4 17.6 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/04 Data Caching with Redis/041 MongoDB Query Performance.mp4 17.6 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/03 Project Setup/039 MongoDB Creation.mp4 17.3 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/07 Scalable ImageFile Upload/157 Calling GetSignedURL.mp4 17.2 MB
[FreeCourseSite.com] Udemy - Node JS Advanced Concepts/05 Automated Headless Browser Testing/091 The Session Factory.mp4 16.9 MB

[磁力链接] 添加时间:2024-07-13 大小:1.4 GB 最近下载:2025-06-17 热度:591

[ DevCourseWeb.com ] Udemy - Playwright Js

~Get Your Files Here !/2. Assertions-1.mp4 221.7 MB
~Get Your Files Here !/12. Page Object Model - 1.mp4 129.4 MB
~Get Your Files Here !/8. Frames [Switching to child frames from parent frame and vice versa].mp4 123.4 MB
~Get Your Files Here !/14. Allure reporting with steps ,attachments , epic ,story ,bug ,test case links.mp4 113.3 MB
~Get Your Files Here !/11. Visual Testing - 2.mp4 95.5 MB
~Get Your Files Here !/18. File Upload.mp4 80.9 MB
~Get Your Files Here !/19. Alerts and PopUps.mp4 68.3 MB
~Get Your Files Here !/17. Controlling Speed Of Execution.mp4 67.0 MB
~Get Your Files Here !/6. Playwright Navigation Commands.mp4 66.4 MB
~Get Your Files Here !/16. Select Option from drop down.mp4 62.9 MB
~Get Your Files Here !/1. Installation.mp4 52.5 MB
~Get Your Files Here !/7. Running Tests.mp4 49.2 MB
~Get Your Files Here !/10. Visual Testing - 1.mp4 48.0 MB
~Get Your Files Here !/9. Window Handling.mp4 46.8 MB
~Get Your Files Here !/3. Assertions - 2.mp4 44.1 MB
~Get Your Files Here !/4. emulation.mp4 40.1 MB
~Get Your Files Here !/13. Page Object Model - 2.mp4 38.2 MB
~Get Your Files Here !/20. Playwright Reporting Options i.e list ,dot ,line ,html ,custom reporter.mp4 30.7 MB
~Get Your Files Here !/15. Find Elements.mp4 28.7 MB
~Get Your Files Here !/21. Playwright Reporting Options i.e Junit and Json.mp4 22.5 MB

[磁力链接] 添加时间:2024-06-01 大小:1.4 GB 最近下载:2025-07-04 热度:2142

Packt - Web development with Vue.js 2

Web development with Vue.js 2 [Video].zip 131.2 MB
4 - Reactivity – Binding Data to Your Application/4.3 Revisiting and Applying Directives.mp4 92.0 MB
6 - Plugins – Building Your House with Your Own Bricks/6.1 Using the Vue-Resource Plugin in the Shopping List Application.mp4 83.0 MB
7 - Testing – Time to Test What We have Done So Far!/7.3 Writing Unit Tests for the Shopping List Application.mp4 76.5 MB
5 - Vuex – Managing State in Your Application/5.3 Greetings with Store.mp4 74.6 MB
5 - Vuex – Managing State in Your Application/5.6 Using the Vuex Store in the Pomodoro Application.mp4 66.8 MB
2 - Fundamentals – Installing and Using/2.3 Comparing with Other Frameworks.mp4 59.8 MB
1 - Going Shopping with Vue.js/1.3 The Importance of Vue.js and Working with Vue.js.mp4 56.9 MB
6 - Plugins – Building Your House with Your Own Bricks/6.2 Creating and Using a Plugin in the Pomodoro Application.mp4 53.9 MB
2 - Fundamentals – Installing and Using/2.5 Installing, Using a Vue.js Application.mp4 53.6 MB
2 - Fundamentals – Installing and Using/2.4 Vue.js Fundamentals.mp4 48.8 MB
3 - Components – Understanding and Using/3.1 Revisiting Components and Their Benefits.mp4 37.7 MB
1 - Going Shopping with Vue.js/1.6 Let's Manage Time!.mp4 36.3 MB
2 - Fundamentals – Installing and Using/2.6 Debugging Your Vue Application.mp4 35.7 MB
5 - Vuex – Managing State in Your Application/5.1 Parent-Child Components' Communication, Events, and Brain Teaser.mp4 34.2 MB
3 - Components – Understanding and Using/3.4 Rewriting Our Shopping List Application with Single-File Components.mp4 34.1 MB
8 - Deploying – Time to Go Live!/8.1 Software Deployment.mp4 32.8 MB
9 - What Is Next/9.3 Why is it Just the Beginning.mp4 32.4 MB
3 - Components – Understanding and Using/3.2 Rewriting the Shopping List with Simple Components.mp4 29.7 MB
3 - Components – Understanding and Using/3.3 Single-File Components.mp4 26.6 MB

[磁力链接] 添加时间:2017-08-02 大小:1.4 GB 最近下载:2025-07-04 热度:2386

[FreeCourseSite.com] Udemy - Mastering data visualization in D3.js

[CourseClub.NET].url 123 Bytes
[FCS Forum].url 133 Bytes
[FreeCourseSite.com] Udemy - Mastering data visualization in D3.js.rar 1.4 GB
[FreeCourseSite.com].url 127 Bytes

[磁力链接] 添加时间:2018-08-15 大小:1.4 GB 最近下载:2025-07-04 热度:4416

Introduction to Data Visualization with d3.js v4

2. API Reference/6. Challenge 1 - Solution.mp4 187.8 MB
2. API Reference/4. Scales and Axes.mp4 141.3 MB
5. Transistions/3. Challenge 3 - Solution.mp4 139.0 MB
7. D3 + React/1. Working Together.mp4 110.0 MB
2. API Reference/3. Enter-Append.mp4 108.1 MB
3. Shapes/2. d3-shape Module.mp4 105.4 MB
5. Transistions/1. Animating Transitions.mp4 98.4 MB
4. Update and Exit/1. enter() and update().mp4 95.7 MB
6. Face Layout/1. d3-force Module.mp4 76.5 MB
1. D3/2. d3.js Introducing.mp4 66.9 MB
3. Shapes/3. Challenge 2 - Line Graph & Solution.mp4 57.8 MB
6. Face Layout/2. Position and Collision.mp4 52.3 MB
3. Shapes/1. Shapes Introduction.mp4 44.5 MB
2. API Reference/1. Selection and Data.mp4 41.5 MB
4. Update and Exit/2. exit() and merge().mp4 35.6 MB
1. D3/1. Introducing.mp4 33.4 MB
2. API Reference/2. Selection and Data Demo Q&A.mp4 18.2 MB
5. Transistions/2. Challenge 3 - Animating Transitions.mp4 13.4 MB
2. API Reference/5. Challenge 1 - Creating a Chart.mp4 9.3 MB
8. Wrapping Up/1. Q&A.mp4 8.1 MB

[磁力链接] 添加时间:2017-09-24 大小:1.4 GB 最近下载:2025-07-02 热度:2437

Pluralsight - Building a Realtime Web Application with Meteor.js

06_production/40_meteorup.mp4 87.2 MB
04_testing/26_carl_tests.mp4 68.9 MB
06_production/38_publications_and_routes.mp4 59.8 MB
05_checkout/36_receipt_page.mp4 58.7 MB
01_prototyping/03_generating_the_site.mp4 55.7 MB
01_prototyping/04_bootstrap.mp4 55.5 MB
03_building/24_namespacing.mp4 55.4 MB
03_building/22_adding_vendors.mp4 53.6 MB
06_production/39_fast_render.mp4 46.6 MB
04_testing/27_the_cart_page.mp4 45.6 MB
05_checkout/31_knockout_viewmodel.mp4 41.6 MB
06_production/37_autopublish.mp4 39.8 MB
06_production/41_hosting_services.mp4 38.9 MB
01_prototyping/12_product_page.mp4 38.0 MB
01_prototyping/06_initial_route_templates.mp4 36.0 MB
03_building/20_using_allow.mp4 36.0 MB
05_checkout/35_checkout_execution.mp4 35.1 MB
01_prototyping/05_routing.mp4 32.9 MB
03_building/18_products_collection.mp4 31.9 MB
04_testing/25_testing_setup.mp4 31.1 MB

[磁力链接] 添加时间:2017-02-11 大小:1.4 GB 最近下载:2025-07-04 热度:1775

[ DevCourseWeb.com ] Udemy - Vue from Scratch with Real Life Vue JS Web Applications

~Get Your Files Here !/1. Intro to Vue from Scracth with Real Life Vue JS Web Applications/14. Imperative and Declerative Programming.mp4 67.7 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/17. Passing Data Parent to Child.mp4 62.1 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/12. Searching in Pixabay API.mp4 62.0 MB
~Get Your Files Here !/1. Intro to Vue from Scracth with Real Life Vue JS Web Applications/22. Expresions in Vue Templates.mp4 55.6 MB
~Get Your Files Here !/1. Intro to Vue from Scracth with Real Life Vue JS Web Applications/18. Turning Data to Viewable Value (Computed Prop).mp4 53.4 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/21. Rendering Video Items.mp4 51.6 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/16. Updating Data.mp4 50.8 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/18. Handling Props in Vue.mp4 50.7 MB
~Get Your Files Here !/1. Intro to Vue from Scracth with Real Life Vue JS Web Applications/19. Code Review.mp4 47.4 MB
~Get Your Files Here !/1. Intro to Vue from Scracth with Real Life Vue JS Web Applications/15. Declarative Apps.mp4 46.0 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/2. Vue Project Outline.mp4 44.6 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/3. Folder structure and Vue Files.mp4 44.4 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/15. Updating Data on Vue Component.mp4 43.9 MB
~Get Your Files Here !/1. Intro to Vue from Scracth with Real Life Vue JS Web Applications/21. Referencing Data in Template Prop.mp4 42.7 MB
~Get Your Files Here !/1. Intro to Vue from Scracth with Real Life Vue JS Web Applications/17. Data Property.mp4 42.2 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/20. Mapping Arrays with v-for Directive.mp4 41.1 MB
~Get Your Files Here !/1. Intro to Vue from Scracth with Real Life Vue JS Web Applications/20. Template in Vue Instance.mp4 40.5 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/10. Listening Custom Events.mp4 39.5 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/4. Vue Component.mp4 38.0 MB
~Get Your Files Here !/2. Creating a New Vue Project from scratch/14. Displaying Videos on Browser.mp4 37.8 MB