Answers for "exchange array.include(string) in Javascript to array.indexOf(string) == -1 in Typescript"

exchange array.include(string) in Javascript to array.indexOf(string) == -1 in Typescript

array.includes('string'); // true
array.includes(200); // true
array.includes(0); // true
array.includes(undefined); // true
array.includes(null); // true
array.includes(symbol); // true