Let a = 'Hello, world.' // a: &'static str str Unsized UTF-8 sequence of Unicode string slices.Let c = &a // From 0th position to 4th(excluding) This view/ reference can be mutable or immutable. Instead of copying it to another array (or same data structure), Rust allows for creating a view/ reference to access only that part of the data. Imagine you want to get/ pass a part of an array or any other data structure. Slice Dynamically-sized reference to another data structure.Also, if you want to change an element’s value, the new value should have the same data type of previous value. ⭐️ Tuples are also immutable by default and even with mut, its element count cannot be changed.

Tuple Fixed size ordered list of elements of different(or same) data types.

Vectors can contain any type of elements but all elements must be in the same data type. 🔎 If you are looking for a dynamic/ growable array, you can use vectors. ⭐️ Arrays are immutable by default and even with mut, its element count cannot be changed.

Array Fixed size list of elements of same data type.

💡 Should avoid using f32, unless you need to reduce memory consumption badly or if you are doing low-level optimization, when targeted hardware does not support for double-precision or when single-precision is faster than double-precision on it. let x = 1.5 // ⭐️ The default float type in Rust is f64 The f32 type is similar to float( Single precision) in other languages, while f64 is similar to double( Double precision) in other languages. Rust follows IEEE Standard for Binary Floating-Point Arithmetic.

f32, f64 32 and 64 bit sized floating point numbers(numbers with decimal points).

🔎 Search more about cross-compiling and supported tiers of Rust programs. By default, the sizes are equal to 32 bits on 32-bit platforms and 64 bits on 64-bit platforms. The actual bit size depends on the computer architecture you are compiling your program for.

isize, usize Pointer sized signed and unsigned integer types.

Same way you can use min_value() and max_value() functions to find min and max of each integer type. 💡 The min and max values are based on the following equation from 0 to 2ⁿ-1. i8::min_value() let x = 10 // ⭐️ The default integer type in Rust is i32 You can use min_value() and max_value() functions to find min and max of each integer type. 💡 The min and max values are based on the following equation from -(2ⁿ⁻¹) to 2ⁿ⁻¹-1. Because of Unicode support, char is not a single byte, but four(32 bits).

U16 range c