Swift Data Types.
| Data Types | Example | Description |
|---|---|---|
| Character | "s","a" | A 16-bit Unicode character |
| String | "hello world!" | represents textual data |
| Int | 3, -23 | An integer number |
| Float | 2.4, 3.14, -23.21 | represents 32-bit floating-point number |
| Double | 2.422342412414 | represents 64-bit floating-point number |
| Bool | true and false | Any of two values: true or false |