Understanding Functions in Groq
What is a Function?
In programming, a function is a reusable block of code that performs a specific task. Functions help in organizing code, making it more modular and easier to maintain. In Groq, functions can take inputs (parameters) and can return outputs.
Defining a Function
To define a function in Groq, you use the function keyword followed by the function name and parentheses containing any parameters. The function body is enclosed in curly braces.
function addNumbers(a, b) {
return a + b;
}
In this example, addNumbers is a function that takes two parameters, a and b, and returns their sum.
Calling a Function
After defining a function, you can call it by using its name followed by parentheses, passing any required arguments.
let result = addNumbers(5, 10);
In this case, we are calling addNumbers with the arguments 5 and 10, and storing the result in the variable result.
Output: 15
Functions with Default Parameters
You can define default values for parameters in a function. If no argument is provided for that parameter when the function is called, the default value will be used.
function multiplyNumbers(a, b = 1) {
return a * b;
}
Here, b has a default value of 1. If you call multiplyNumbers(5), it will return 5 instead of 5 * undefined.
let result = multiplyNumbers(5);
Output: 5
Returning Values from Functions
A function can return a value using the return statement. Once a return statement is executed, the function stops running and returns the specified value.
function square(x) {
return x * x;
}
The square function returns the square of its input. For example, calling square(4) will return 16.
let result = square(4);
Output: 16
Anonymous Functions
Functions can also be defined without a name, known as anonymous functions. These are often used as arguments to other functions or to create function expressions.
let add = function(a, b) { return a + b; };
Here, add is assigned an anonymous function that takes two parameters and returns their sum.
Conclusion
Functions are a fundamental concept in Groq programming, allowing for code reusability and better organization. By understanding how to define, call, and utilize functions, you can write more efficient and manageable code.