1] Types :- The core primitive types in TypeScript are all lowercase.
typeof to identify types
a] number 1, 2.5, 10000, -18
b] string 'abc', "abc", `abc`
c] boolean
d] objects const person {
name: string;
age: number;
} = {
name = 'ABC',
age = 30
}
5] array let colours : string[] = ['blue', 'white']
6] tuple let colBand : [string, number]
7] enum enum Role {ADMIN, READ_ONLY, AUTHOR};
8] any
9] custom type , alias
9] callback function
9] Function
10] never
11] unknown
