馬老師 雲端研究室

Passion inspires professional

馬老師 雲端研究室

AngularJS – Controller 介紹篇

by · 2015-02-06

繼續AngularJS的介紹，接下來我們看看controller的應用，以商品介紹的頁面為例，來看看這些資料要如何呈現在頁面上，想要呈現的資料有產品名稱、價格以及描述。

為了方便文章閱讀，本篇將application翻譯成應用程式；controller翻譯成控制器

AngularJS Part2 Slide1

控制器負責定義函數和值來決定整個應用程式的行為，同樣我們把Javascript和HTML分開來開發，在app.js內定義應用程式名稱和控制器的名稱、函數與值，在這次的案例中也提到利用(function(){})()包裝整個javascript是一種好習慣，有關於函式的基本觀念，大家可以閱讀一下這篇文章，介紹的還蠻詳細的！包裝部分的概念可參考其中介紹的立即函示（IIFE – Immediately Invoked Function Expression）。

AngularJS Part2 Slide2

定義好之後可以開始定義該控制器內的值，其中this.product=gem的意思是指未來在輸出時可以利用product.name去取得Dodecahedron；product.price去取得2.95…等等。

AngularJS Part2 Slide3

接下來就是把這些值顯示在網頁上，首先可以在div標籤內加上ng-controller=”StoreController as store”的屬性，其中ng-controller是去指定StoreController為該div內的控制器名稱；store是別名（類似綽號）未來呼叫store時就是在呼叫StoreController這個控制器。

AngularJS Part2 Slide5

在HTML標籤內開始輸出該控制器內的值，分別是：store.product.name、store.product.price、store.product.description三個項目，而在頁面上就會看到這三個值被顯示出來了。

AngularJS Part2 Slide6

需要注意的是，如果我們把輸出值部分的程式碼放在div外側的話，會沒有辦法順利的顯示值，因為我們的控制器是指定於div標籤內，離開了div標籤就無法取得該控制器了。

AngularJS Part2 Slide7

本篇的教學就到這邊，大家也可以透過JS Bin來測試或閱讀本次案例的程式碼。

<!DOCTYPE html>
<html ng-app="store">
<head>
<meta name="description" content="controllerExample">
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.2/angular.min.js"></script>
  <meta charset="utf-8">
  <title>controllerExample</title>
</head>
<body>
  
  <div ng-controller="StoreController as store">
    <h1>{{ store.product.name }}</h1>
    <h2>{{ store.product.price }}</h2>
    <p>{{ store.product.description }}</p>
  </div>
  
</body>
</html>
(function(){
  var app = angular.module('store',[]);
  
  app.controller('StoreController',function(){
    this.product = item;
  });
  
  var item = {
    name:"馬老師雲端研究室 滑鼠墊",
    price:"350",
    description:"有些人認為滑鼠墊就只是種簡單的產品。無非是將滑鼠放於上方並將之滑來拖去。 “表面”上來說確實如此（一語雙關）。但實際上，製造能帶來卓越遊戲體驗的滑鼠墊卻需要結合眾多科學、技術和工藝。身為遊戲滑鼠技術的世界領先者，對如何使滑鼠感測器高效運作我們獨樹一幟。運用專門知識來製造適合的滑鼠墊表面，讓滑鼠感測器得以作出高效而精確的反應。",    
  };
  
})();

※以上截圖部分為AngularJS官方教學視訊，另有控制器指令介紹的專頁。

Tags:

You may also like...

9,285 Responses

  1. Alvinimave表示:
    2022-09-1405:29:21

    Beneficial facts. Appreciate it!
    writing essay for scholarship https://altertraff.com/ professional dissertation writing services

    回覆
  2. Brucetoush表示:
    2022-09-1402:24:27

    Seriously quite a lot of superb material.
    canadian viagra generic pharmacy pharmacy drugstore online publix pharmacy online ordering

    回覆
  3. liderty表示:
    2022-09-1401:32:24

    Heriberto GGHpYNIHbRrNKnDObvj 5 21 2022. buy nolvadex

    回覆
  4. endearype表示:
    2022-09-1401:11:08

    tamoxifen mechanism of action

    回覆
  5. Alvinimave表示:
    2022-09-1400:57:35

    Very good info. Thanks.
    how to write the perfect college essay https://dissertationwritingtops.com/ editing and writing services

    回覆
  6. Alvinimave表示:
    2022-09-1400:27:57

    You actually reported it exceptionally well!
    great writing 3 from great paragraphs to great essays essay writing service book report writers

    回覆
  7. Wendelldub表示:
    2022-09-1322:22:03

    Awesome info. Thanks!
    drug price pharmacy intern order medicine online

    回覆
  8. gapamma表示:
    2022-09-1318:11:14

    tamoxifen and uterine cancer symptoms

    回覆
  9. gapamma表示:
    2022-09-1317:58:21

    nolvadex dosage pct

    回覆
  10. sbobet表示:
    2022-09-1315:12:01

    These are some of the most important issues we’ll face over the next few decades.

    回覆
  11. Alvinimave表示:
    2022-09-1314:40:03

    Thank you! I value this.
    how to write a compare essay https://orangepornhub.com/ writing services online

    回覆
  12. Brucetoush表示:
    2022-09-1313:00:12

    Useful content. With thanks.
    online medicine tablets shopping online pet pharmacy panacea pharmacy

    回覆
  13. gapamma表示:
    2022-09-1312:04:18

    Notably, caffeine s effects on pregnancy outcomes have been shown to be highly variable between individuals in both rodents 35,38 and humans 5,8,9,45,46 Figure 2A. nolvadex xt

    回覆
  14. Neexykelp表示:
    2022-09-1311:34:14

    nolva tamoxifen The treatment of infertility in polycystic ovary syndrome A brief update.

    回覆
  15. canelo vs golovkin 3表示:
    2022-09-1310:59:46

    I just added this to my favorites. I truly love reading your posts. Tyvm!

    回覆
  16. Alvinimave表示:
    2022-09-1310:24:54

    Fantastic postings. Thanks a lot.
    can i pay someone to write my essay https://essayssolution.com/ i need help writing a speech

    回覆
  17. Alvinimave表示:
    2022-09-1309:54:59

    Amazing a lot of valuable knowledge.
    write college essay essay writing service essay help websites

    回覆
  18. Wendelldub表示:
    2022-09-1309:12:25

    Really plenty of useful data!
    online pharmacies no prescription online discount pharmacy viagra from canada

    回覆
  19. gapamma表示:
    2022-09-1305:18:09

    I ovulated CD14 a couple months ago so I was hoping my body was finally just regulating after I finished nursing my son in November. tamoxifen side effects weight gain

    回覆
  20. Alvinimave表示:
    2022-09-1302:45:54

    Awesome material, Cheers.
    best websites for essays https://flowleadsua.com/ business letter writing service

    回覆
  21. Shutter Repair表示:
    2022-09-1301:18:45

    Are the issues really as complex as they seem?

    回覆
  22. Brucetoush表示:
    2022-09-1300:32:26

    Great write ups. Regards!
    canada drugs online pharmacy canadian pharcharmy canada pharma limited

    回覆
  23. Alvinimave表示:
    2022-09-1222:31:25

    Nicely put, Thank you!
    how to write a formal essay essay writing service best thesis writing services

    回覆
  24. Alvinimave表示:
    2022-09-1222:00:23

    Seriously quite a lot of helpful facts.
    write custom essays https://quality-essays.com/ online writing help

    回覆
  25. Wendelldub表示:
    2022-09-1220:45:41

    Thank you. I appreciate it!
    trusted overseas pharmacies online pharmacy without prescription canadian drugstore

    回覆
  26. Mindypisn表示:
    2022-09-1219:17:10

    gay sex massachusetts chat
    gay chat rooms no cam needed
    gay chat chat

    回覆
  27. Alvinimave表示:
    2022-09-1214:49:06

    Wow many of helpful advice!
    freedom writers movie essay essay writings best custom essay writing services

    回覆
  28. Brucetoush表示:
    2022-09-1211:59:57

    Seriously all kinds of beneficial tips.
    pharmacy near me canadian drug prescription prices comparison

    回覆
  29. Alvinimave表示:
    2022-09-1210:28:18

    Excellent information. Appreciate it!
    college admission essay essay rewriter mba essay writing services

    回覆
  30. Alvinimave表示:
    2022-09-1209:56:53

    You said it perfectly..
    writing about yourself essay best mba essay editing service website that grades essays

    回覆

發佈留言

發佈留言必須填寫的電子郵件地址不會公開。