//EXPECT NUMBER

function add(a: number, b: number): number {

return a + b;

}

//EXPECT STRING

function greet(name: string): string {

return `Hello ${name}`;

}

//EXPECT BOOLEAN

function powerOutage(light: boolean): void {

if (light) {

console.log('There is light');

} else {

console.log('Power outage');

}

}

//EXPECT ARRAY

function customFind(arr: string[], element: string): boolean | void {

for (let i = 0; i < arr.length; i++) {

if (arr[i] === element) {

return true;

}

}

}

//EXPECT OBJECT

function logPersonName(person: TPerson): void {

console.log(person.name);

}

type TPerson = {

name: string;

age: number;

};

const person: TPerson = {

name: 'John',

age: 30,

};

logPersonName(person);