interface typescript angular code example
Example 1: typescript class implements interface
interface Task{
name: String; //property
run(arg: any):void; //method
}
class MyTask implements Task{
name: String;
constructor(name: String) {
this.name = name;
}
run(arg: any): void {
console.log(`running: ${this.name}, arg: ${arg}`);
}
}
let myTask: Task = new MyTask('someTask');
myTask.run("test");
Example 2: typescript interface
interface LabeledValue {
label: string;
}
function printLabel(labeledObj: LabeledValue) {
console.log(labeledObj.label);
}
let myObj = { size: 10, label: "Size 10 Object" };
printLabel(myObj);Try
Example 3: typescript interface
interface NumberOrStringDictionary {
[index: string]: number | string;
length: number; // ok, length is a number
name: string; // ok, name is a string
}Try
Example 4: create method in interface for set TS
running: someTask, arg: test