This article represents two different ways in which Angular 2 components properties can be initialized. Please feel free to comment/suggest if I missed to mention one or more important points. Also, sorry for the typos.
Following are two different ways to initialize the component properties.
- In the example below, component’s property is initialize through variable assignment. Take a look at the code “name = ‘Calvin Hobbes'”. This approach is sometimes preferable because it makes code easy to read and also, there will be lesser code to write.
import {Component, View} from 'angular2/core'; @Component({ selector: 'user' }) @View({ template: '{{name}}' }) export class UserComponent { name = 'Calvin Hobbes'; } - In the code below, the property is first declared and then initialized inside the constructor.
import {Component, View} from 'angular2/core'; @Component({ selector: 'user' }) @View({ template: '{{name}}' }) export class UserComponent { name: string; constructor() { this.name = 'Calvin Hobbes'; } }
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