//Number argment if we use any num method or any Arthematic logic
function add(num: number) {
	return num + 2;
}
function mult(num: number): number {
	// after parameter for strict return check we have to : type
	return num * 4;
	// return 'he he multiplication';
}
console.log(mult(6)); // this is working but this returns me string LOL

const ok = add(5);
console.log(ok);

//String argument if we use any string method
function getUppercase(caf: string) {
	return caf.toUpperCase();
}
console.log(getUppercase('ok man'));

// Real Situtaion in JS (Bad Practice)
function regularSignUpUser(name, email, isLogin) {
	//this is how we write in js but what if any user/developer somthing else
}
// regularSignUpUser(1, 2, 3); // its not giving any error while converting to JS but it should be

// Real Situtaion in TS (Good Practice)
function tsSignUp(name: string, email: string, isLogin: boolean = true) {
	//Yaaa, this is right way
	return { name, email, isLogin };
}
// tsSignUp(1,2,3)//now its showing error one by one
const tsss = tsSignUp('ok', 'ok@gmail.com'); // if you will give third argument you have to give default while giving paramater to function
// const tsss = tsSignUp('delta', 'd@d.com', false); // So gave proper values
console.log(tsss);

//arrow function
const getHello = (some: string): string => {
	return `how you doing ${some}`;
};
console.log(getHello('dk'));

//Array detect types  in ts if all are same
const heroes = ['vikram batra', 'manoj pandey', 'sam manekshaw'];
// const heroes= [1, 2, 3, 4, 5];

const hrResult = heroes.map((hero): string => {
	return `Indian Army Hero ${hero.toUpperCase()}`;
});
console.log(hrResult);

// Console Error -- void
function consoleError(errmsg:string):void{
    console.log(errmsg);
}
consoleError("eeeerooor")

//Handling Error 
function handelError(errmsg: string): never {
    throw new Error(errmsg)
}
handelError('eeeerooor');



export {};