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6. Components 6.1 What are Components? Components are one of the most powerful features of Vue.js. They help you extend basic HTML elements to encapsulate reusable code. At a high level, Components are custom elements that Vue.js’ compiler would attach specified behavior to. In some cases, they may also appear as a native HTML element extended with the special is attribute. It is a really clever and powerful way to extend HTML to do new things. In this chapter we are going to start out with an extremely simple example and next we are going to see how Components can help us improve the code we have created, in some of the previous chapters. 6.2 Using Components We are going to start with a simple Component. In order to use a component we have to register it first. One way to register a component is to use the Vue.component method and pass in the tag and the constructor. Think of the tag as the name of the Component and the constructor as the options. In our occasion, we’ll name the Component story and we’ll define the property story (again). The option template (how we would like our story to be displayed), is inside the constructor where other options will be added as well. Our story component will be registered like this 1 Vue.component('story', { 2 template: 'My horse is amazing!' 3 }); Now that we have registered the component we will make use of it. We will add the custom element inside the HTML to display the story. 63
Components 64 1 2 3 5 Hello Vue 6 7 8 9 10 11 12 13 14 Vue.component('story', { 15 template: 'My horse is amazing!' 16 }); 17 18 new Vue({ 19 el: '.container' 20 }) 21 22 Note Note here that you can give your custom component any name you want, but it is generally recommended that you should use a unique name to avoid having collisions with actual tags that might get introduced at some point in the future, and saving you time from having to change large amounts of code. As we mentioned at the beginning of the chapter, components are reusable which means you can append as many elements as you want. The following HTML snippet will display our story 3 times.
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The Majesty Of Vue.js © 2015 - 201
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CONTENTS 3. A Flavor of Directives.
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Introduction i
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About Vue.js iii “Mark my words:
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About Vue.js v React React and Vue.
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About Vue.js vii Ember Ember is a f
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About Vue.js ix Riot Riot 2.0 provi
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Welcome xi Homework The best way to
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Vue.js Fundamentals 1
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Install Vue.js 3 1 # latest stable
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Getting Started 5 10 11 12 13 14
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Getting Started 7 Two-way data bind
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Getting Started 9 2.4 Homework A ni
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A Flavor of Directives. 11 15 messa
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Page 32 and 33: A Flavor of Directives. 15 Template
Page 34 and 35: A Flavor of Directives. 17 12 13
Page 36 and 37: A Flavor of Directives. 19 3.5 Home
Page 38 and 39: List Rendering 21 At this point, we
Page 40 and 41: List Rendering 23 4.2 v-for In orde
Page 42 and 43: List Rendering 25 4.3 Array Renderi
Page 44 and 45: List Rendering 27 This is the outpu
Page 46 and 47: List Rendering 29 Rendered array wi
Page 48 and 49: List Rendering 31 1 2 Let's hear s
Page 50 and 51: List Rendering 33 37 data: { 38 sto
Page 52 and 53: List Rendering 35 13 14 17 {{ sto
Page 54 and 55: List Rendering 37 Isn’t that awes
Page 56 and 57: List Rendering 39 36 writer: "John"
Page 58 and 59: List Rendering 41 We initialize ord
Page 60 and 61: List Rendering 43 29 }) 30 31 new V
Page 62 and 63: List Rendering 45 4.8 Homework For
Page 64 and 65: Interactivity 47 1 2 3 5 Upvote
Page 66 and 67: Interactivity 49 1 2 3 5 Upvote
Page 68 and 69: Interactivity 51 19 20 22 23 25
Page 70 and 71: Interactivity 53 Using Event Modifi
Page 72 and 73: Interactivity 55 11 {{$data | json}
Page 74 and 75: Interactivity 57 But there is a mor
Page 76 and 77: Interactivity 59 24 } 25 }, 26 });
Page 78 and 79: Interactivity 61 1 2 3 Let's hear
Page 82 and 83: Components 65 1 2 3 4 5 6 7
Page 84 and 85: Components 67 1 Vue.component('stor
Page 86 and 87: Components 69 Info v-bind is used t
Page 88 and 89: Components 71 1 2 Lets hear some s
Page 90 and 91: Components 73 1 2 3 5 Hello Vue
Page 92 and 93: Components 75 13 el: '#app', 14 dat
Page 94 and 95: Components 77 16 17 1 Vue.compone
Page 96 and 97: Components 79 1 2 3 Let's hear so
Page 98 and 99: Components 81 6.7 Homework This is
Page 100 and 101: 7. Class and Style Bindings 7.1 Cla
Page 102 and 103: Class and Style Bindings 85 Changed
Page 104 and 105: Class and Style Bindings 87 7.1.2 A
Page 106 and 107: Class and Style Bindings 89 Style o
Page 108 and 109: Class and Style Bindings 91 32 }, 3
Page 110 and 111: Consuming an API 93
Page 112 and 113: Preface 95 8.2.1 Download Book’s
Page 114 and 115: Preface 97 As indicated in the abov
Page 116 and 117: Working with real data 99 To do so
Page 118 and 119: Working with real data 101 Get stor
Page 120 and 121: Working with real data 103 Renderin
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Page 126 and 127: 10. Integrating vue-resource 10.1 O
Page 128 and 129: Integrating vue-resource 111 DELETE
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Integrating vue-resource 113 1 read
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Integrating vue-resource 115 1 var
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Integrating vue-resource 117 We obs
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Integrating vue-resource 119 The fe
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Integrating vue-resource 121 1 Vue.
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Integrating vue-resource 123 31 33
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Integrating vue-resource 125 1 Vue.
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Integrating vue-resource 127 10.6 H
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