js sum

What is JavaScript Sum?

JavaScript is a high-level programming language used for creating interactive web pages. Sum is a basic mathematical operation of addition that adds one or more numbers together. In JavaScript, the sum function can be used to add two or more numbers together.

Code Examples:

To create a sum function in JavaScript, you can use the following code:

function sum(num1, num2) {
  return num1 + num2;
}

console.log(sum(5, 10)); // Output: 15

The above code defines a function named "sum" that takes two arguments and returns their sum. The console.log statement at the bottom calls the sum function with the arguments 5 and 10, which returns 15.

You can also use the reduce method to add an array of numbers together:

const numbers = [1, 2, 3, 4, 5];

const sum = numbers.reduce((total, num) => {
  return total + num;
}, 0);

console.log(sum); // Output: 15

The reduce method takes a function that is executed on each element of the array and returns a single value. In this case, the function adds each element of the array to the running total. The initial value of the total variable is set to 0.

In addition, you can also use the spread operator to add an arbitrary number of arguments together:

function sum(...nums) {
  return nums.reduce((total, num) => {
    return total + num;
  }, 0);
}

console.log(sum(1, 2, 3, 4, 5)); // Output: 15

The spread operator allows you to pass an array of arguments to the sum function. The reduce method is then used to add all of the numbers together.