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。
What Is Ford Key Replacement And Why Is Everyone Talking About It?
replacement ford Key cost
10 Quick Tips To Misted Double Glazing Repairs Near Me replacing A double glazed window
A How-To Guide For Mental Health Psychiatrist From Beginning To End how can i get a mental health assessment
See What Treadmills Tricks The Celebs Are Using Treadmill
11 Ways To Completely Sabotage Your Pvc Window Repairs upvc
window repairs (Luca)
How Text Rewritter Was The Most Talked About Trend
Of 2022 Ai text rewrite
What’s The Most Important “Myths” About Fiat 500
Key Fob Could Actually Be True fiat 500 electric key
A Glimpse At The Secrets Of Mobile Automobile Locksmith Automobile Locksmith Near Me
The Top Espresso Coffee Machine Experts Have Been Doing 3
Things Uk Espresso Machine
You’ll Never Guess This Cut Car Keys Near Me’s Secrets Cut Car Key
“The Double Glazed Window Near Me Awards: The Best, Worst And The Most Unlikely Things We’ve Seen Replacing Double Glazed Units
Are You Sick Of CSGO Weapon Case? 10 Inspirational
Resources To Bring Back Your Love Esports 2013 Winter Case
Guide To Social SEO Software: The Intermediate Guide The Steps
To Social SEO Software social Seo software (te.legra.ph)
10 Wrong Answers For Common Replacement Bmw Key Questions Do You Know The Correct
Answers? Fob
Why The Biggest “Myths” Concerning Motor Vehicle Litigation Could Actually Be Accurate motor vehicle
accident attorneys (Lynette)
How To Become A Prosperous Misted Double Glazing Repairs Near
Me Entrepreneur Even If You’re Not Business-Savvy Windows double Glazing
The History Of What Is The Best Online Shopping In Uk Vimeo.Com
The Best Mesothelioma Attorney Methods To Rewrite Your Life
Asbestos Compensation
The Most Sour Advice We’ve Ever Received On Ghost Immobiliser Fitting
Near Me Ghost Immobiliser fitting near me
Semi Truck Settlement: The Good And Bad About Semi Truck Settlement
semi Truck accidents
10 Facts About CSGO Cases Highest Roi That Make You Feel Instantly
A Good Mood operation Phoenix weapon case (touchair0.bravejournal.net)
The 10 Worst Bmw Car Key Fails Of All Time Could
Have Been Prevented Replacement Key For Bmw
What Is Misted Double Glazing Repairs? To Make Use Of It Door Repair
8 Tips To Enhance Your Avon Spray Skin So Soft Game avon skin so soft dry oil spray
Auto Locksmith Near Me Prices 10 Things I’d Like To Have Learned Earlier Auto Locksmith Services
What You Must Forget About How To Improve Your Uk Women’s Online
Shopping Websites Vimeo
What Automobile Locksmith Near Me Will Be Your Next Big Obsession auto locksmiths in my area
Five Killer Quora Answers On Link Login Gotogel link login gotogel –
Maryellen,
The Reason Why You’re Not Succeeding At Private Psychiatrist Diagnosis private psychiatrist assessment
How Dangerous Drugs Lawyer Rose To Become The #1 Trend In Social Media Dangerous Drugs Attorney