Type with OR
const multiArray: (number|string|boolean)[] = [];
multiArray.push(1);
multiArray.push(true);
multiArray.push('dua');
console.log(multiArray)INFO
const multiArray: (number|string|boolean)[] = [];
multiArray.push(1);
multiArray.push(true);
multiArray.push('dua');
console.log(multiArray)