--- date: 2020-09-29 id: aea39282-589d-49ab-8b50-c55c7681f500 title: TypeScript Arrays --- # Syntax ``` typescript var boolArray: boolean[]; boolArray = [true, false]; console.log(boolArray[0]); // true console.log(boolArray.length); // 2 boolArray[1] = true; boolArray = [false, false]; boolArray[0] = 'false'; // Error! boolArray = 'false'; // Error! boolArray = [true, 'false']; // Error! ```