AngularJS – Controller 介紹篇
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
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)。
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。
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。
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。
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。
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。
15 Reasons You Must Love Upv Door Hinges double glazing window hinge repairs (https://yogicentral.science/wiki/8_Tips_To_Increase_Your_Glass_Hinge_Game)
Why Mesothelioma And Asbestos Lawyer Isn’t A Topic
That People Are Interested In Mesothelioma And Asbestos
Lawyer mesothelioma attorneys, Patrick,
Responsible For A Item Upgrade Budget? 12 Top
Ways To Spend Your Money upgrade items
The Top Mobility Scooter For Shopping Gurus Do 3 Things modern mobility scooters – Hung –
Five Subaru Car Keys Projects For Any Budget subaru lost keys (https://elearnportal.Science/wiki/Theres_Enough_15_Things_About_Subaru_Forester_Key_Replacement_Were_Tired_Of_Hearing)
Guide To 3 Wheel Pushchair Travel System: The Intermediate
Guide For 3 Wheel Pushchair Travel System 3 Wheel Pushchair travel System
See What Psychotherapy Near Me Tricks The Celebs Are Utilizing Psychotherapy Near Me
The 10 Scariest Things About Freezer Integrated Fridge Freezer Integrated fridge
9 Lessons Your Parents Taught You About Living Room Couch Sets living Room couch (https://Bookmarkangaroo.com/)
The Reasons Adult L Shaped Bunk Beds Is Everywhere This Year bunk
bed l [Victordirectory.com]
20 Lightweight Wheelchair Electric Websites Taking The Internet By
Storm light Electric wheelchair
Приобретение школьного аттестата с официальным упрощенным обучением в Москве
What Is Fridges & Freezers And Why Is Everyone Talking About It?
best fridge freezers uk (Jonelle)
4 Dirty Little Secrets About Train Injury Lawsuit And The Train Injury
Lawsuit Industry Attorney truck accident
There Are A Few Reasons That People Can Succeed Within The Volkswagen Key Programming Industry
volkswagen key programming near Me
The Most Effective Reasons For People To Succeed In The Fireplace Bioethanol Industry Ethanol Fireplaces
Быстрое обучение и получение диплома магистра – возможно ли это?
Ten Foldable Treadmills That Really Make Your Life Better Foldable
Treadmills – bbs.pku.Edu.cn –
The Best Car Accident Lawyers Near Me Tricks To Transform Your Life best car accident lawyers near me; https://www.deepzone.net/Home.php?mod=space&uid=4315243,
24-Hours To Improve Symptoms Of Depression Symptoms Of Depression physical signs of depression
17 Signs To Know If You Work With Mesothelioma Asbestos Lawyer mesothelioma lawyers; Antonetta,
10 Life Lessons We Can Take From ADHD Assessment UK Private how much does private adhd assessment cost
10 Best Books On 2 Seater Fabric Fabric 2 Seater Sofas
The Reason Behind Pragmatic Slot Experience Has Become The Obsession Of Everyone
In 2024 프라그마틱 무료
You’ll Never Guess This Pram Bag’s Tricks Pram Bag
10 Tell-Tale Signs You Must See To Buy A Sectional Sofa L Shaped sleeper sofa l shaped, couches37491.bimmwiki.com,
5 Killer Quora Answers On Treadmills Home Gym Treadmills home gym
What’s The Current Job Market For Aluminium Window Repair London Professionals Like?
aluminium window repair london (dashing-cuckoo-fbl61Q.mystrikingly.com)
Why Nobody Cares About Wall Mount Fireplaces fireplace stove – share.pho.to,
Don’t Buy Into These “Trends” Concerning Mesothelioma Claim mesothelioma Compensation lawyer