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What is type uint8 in Golang?

Abdul Monum

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Variables contain data, and data can be of different data types, or types for short. Golang is a statically typed language, which means the compiler must know the types of all the variables, either because they are explicitly indicated or because the compiler can infer the type from the code context. A type defines the set of values and the set of operations that can take place on those values.

type uint8 in Golang is the set of all unsigned 8-bit integers. The set ranges from 0 to 255. You should use type uint8 when you strictly want a positive integer in the range 0-255. Below is how you declare a variable of type uint8:

var var_name uint8

Example

package main
import "fmt"
func main() {
var var1 uint8 = 243
fmt.Printf("Type of var1: %T", var1)
}

Explanation

The above code declares the variable var1 with type uint8 and displays its type using the Printf method from the fmt package.

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Abdul Monum
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Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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