TypeScript. Functions

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In this video we’ll consider new features in functions work and union types in TypeScript.
Code lesson
interface Football {
	cloth: string;
	score: string;
	getSportName: () => 'Football';
	getFootballString: () => 'Football string';
}

interface Hockey {
	cloth: string;
	score: string;
	getSportName: () => 'Hokey';
	getHockeyString: () => 'Hockey string';	
}


function func(): Football | Hockey {
	// code
}

let sport = func();
sport.getSportName();
// sport.getFootballString();


if((<Football>sport).getFootballString) {
	(<Football>sport).getFootballString();
}

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