lesson1Title

lesson2Title

lesson3Title

lesson4Title

lesson5Title

lesson6Title

lesson7Title

lesson8Title

lesson9Title

lesson10Title

lesson11Title

lesson12Title

lesson13Title

lesson14Title

webIntroJsChapter1Title

lesson15Title

lesson16Title

webIntroJsChapter2Title

webIntroJsChapter3Title

lesson17Title

webIntroJsChapter4Title

// Programming languages are languages used to instruct computers to perform tasks

// The addNumbers function adds two numbers
function addNumbers(a, b) {
  return a + b;
}

// Call the addNumbers function and store the result in the sum variable (a container for data)
var sum = addNumbers(5, 3);

// Output the value stored in the sum variable
console.log(sum);

# What Are Programming Languages?

Unlike markup languages like HTML, which express the structure of data and content, and CSS, which defines the style of web pages, **JavaScript** is a `programming language` used to instruct computers to perform tasks.

Computers are complex digital devices that represent and process data using 0s and 1s, which means they cannot understand human languages like English.

Therefore, programming languages act as a bridge between human languages and computer languages, serving as a middle ground that both humans and computers can understand.

For example, the `addNumbers` function takes two `parameters`, a and b, and returns the sum of these two parameters.

We will delve deeper into functions later on!

A programming language is a language used to instruct computers to perform tasks. It serves as an intermediary that both humans and computers can understand.

What Are Programming Languages?

What is a programming language?