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。
11 Ways To Fully Redesign Your Birth Defect Law Birth defect law firms
5 Qualities People Are Looking For In Every Slot Demo Zeus Vs Hades oscarreys.top
The 9 Things Your Parents Teach You About Online Famous Shopping Sites Online Famous Shopping Sites
10 Beautiful Graphics About Table Top Freezers Uk 3222914
What’s The Job Market For Online Shopping Clothes Uk Cheap Professionals?
online shopping clothes uk cheap
How To Make A Profitable Misted Double Glazing Repairs Near Me
If You’re Not Business-Savvy Double galzing (sm.Sdsu.Edu)
11 Ways To Completely Sabotage Your Asbestos Exposure Claim http://www.9363280.xyz
12 Companies Leading The Way In Personal Injury Compensation Personal injury lawsuit
9 Lessons Your Parents Teach You About Best Online Shopping Sites London Online Shopping
What’s The Current Job Market For Online Shopping Uk Groceries
Professionals Like? online shopping uk groceries
Why All The Fuss? Childrens Bunk Beds? eddafay.top
See What Key Of Rolls Royce Tricks The Celebs Are Using Key Of Rolls Royce (Doodleordie.Com)
10 Search Engine Optimisation Strategies All The Experts Recommend local Seo Optimisation services
9 Things Your Parents Taught You About Shopping Online Sites
shopping online Sites
Guide To Shop Online Uk Women’s Fashion: The Intermediate Guide On Shop
Online Uk Women’s Fashion Shop Online Uk Women’s Fashion
Why No One Cares About Workers Compensation Litigation workers’ compensation lawyers
10 Tips For Quickly Getting Mini Car Key mini key not working (Bernie)
This Is The Ultimate Cheat Sheet For Best Online Shopping Groceries Uk Which supermarket is cheapest for online shopping
The 10 Most Scariest Things About List Of Online Shopping Sites
Uk list of online shopping sites uk
What You Can Do To Get More From Your Asbestos Attorney Nannette
What’s The Job Market For Best Online Shopping Groceries Uk Professionals?
best online shopping groceries uk
You’ll Be Unable To Guess Medical Malpractice Settlement’s Tricks
Tiburon medical malpractice lawyer – https://vimeo.com/,
The Biggest Sources Of Inspiration Of Window And Door Company
Near Me Near by
Upvc Repairs Near Me Tools To Ease Your Daily Life Upvc
Repairs Near Me Trick That Everybody Should Learn upvc Repairs
Near Me (ab-search.com)
Single Buggy Tools To Streamline Your Daily Life Single Buggy Trick
Every Individual Should Learn Single buggy (ghu.hit.gemius.pl)
Crawley Double Glazing The Process Isn’t As Hard As You Think upvc windows near me
(http://it.thefreedictionary.com/_/cite.aspx?url=http://glamorouslengths.com/author/shelfgun8/&word=puzzo&sources=kdict,crusca,hc_It_En)
You’ll Never Be Able To Figure Out This Online Shopping Uk’s Secrets Online Shopping Uk
You’ll Never Be Able To Figure Out This London Online Mobile Shopping Sites’s Tricks london online mobile Shopping sites (ummatemuslima.org)
What’s The Current Job Market For Upvc Repairs Near Me Professionals Like?
upvc repairs near me (http://www.thealphapack.nl/url?q=https://sejersen-stafford.hubstack.net/heres-A-little-known-fact-about-window-replacement-near-me-window-replacement-near-me)
What’s The Job Market For Reclining Sectional With Chaise Professionals?
Reclining Sectional with chaise