Golang - Multiple Return Values
Overview
A function is a reusable block of code used in a programming language. It has function body, Arguments, and return types. Golang returns multiple values with its functions Implementation. In this article, we will understand more about Multi-value returns in Golang.
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Introduction
A Programming function is a line of codes that performs a single task. Functions help in the division of our program into smaller, modular portions. It also eliminates repetition and makes the code reusable.
Below is a generic function skeleton.
function_name: It is the name of the function.
parameters: It contains information regarding the input argument data types.
return_type: It includes the types of values that the function returns.
Functions in Golang
Example to create and invoke a Golang function.
Output:
Example for Golang Function : here
Multiple Return Type
In Golang, You are given the functionality to return multiple values from a function. you can just return as many values as you want and consume them with a comma-separated variables list as shown in the syntax.
Syntax:
Example of Multiple Return Type
Let's create an example where a Golang function returns the next 3 integers of that of the input parameter.
Output:
Multiple return Type example : here
Named Multiple Return Type
Golang allows us to name our return types. They are treated as variables defined at the top of the function. A return statement without arguments returns the named return values, As shown in the example. This is also known as a naked return.
Let's modify our example with getNextThreeValues() function to a Named multiple return type example.
Output:
Named multiple return type example: here
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Conclusion
- Described the concept of returning multiple values using a Golang function.
- Implemented examples showing the use of multi-return values.
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