typescript function in interface code example
Example 1: typescript interface function
interface IEmployee {
empCode: number;
empName: string;
getSalary: (number) => number;
getManagerName(number): string;
}
Example 2: typescript class interface
interface IPerson {
name: string
age: number
hobby?: string[]
}
class Person implements IPerson {
name: string
age: number
hobby?: string[]
constructor(name: string, age: number, hobby: string[]) {
this.name = name
this.age = age
this.hobby = hobby
}
}
const output = new Person('john doe', 23, ['swimming', 'traveling', 'badminton'])
console.log(output)
Example 3: typescript interface
interface NumberOrStringDictionary {
[index: string]: number | string;
length: number;
name: string;
}Try
Example 4: interface ts one valu
type StringOrNull = string | null;