1. mutable and immutable 2. explicit and implicit 3. Type Inference 4. Character 5. String Interpolation 6. Tuple 7. Comparison Operators 8. code with comments and Examples

mutable and immutable: this is how we refer in swift.

var and constant

Data type

implicit: datatype not defined

explicit: datatype is defined

Type Inference: when swift decides the datatype of variable.

option click se datatype pata chalta hai and also type(of: varName)

Character: It is made by default to deal with the unicode data/hex values. It only stores one value i.e “a”

character dt can be converted String dt

String Interpolation: using variable in a string

Tuple: An array consisting of different datatypes

Tuples: can’t add or remove elements in a tuple