JavaScript is a versatile programming language that enhances the interactivity and functionality of web pages. It is a core technology alongside HTML and CSS, indispensable for building simple websites as well as complex web applications.

This course is a comprehensive introduction to JavaScript programming fundamentals, starting with problem-solving and simple programs. Through hands-on exercises, challenges, and quizzes, you will learn about control structures, loops, strings, arrays, and functions, eventually gaining mastery. 

By the time you’re done with the course, you will have acquired problem-solving skills, a strong foundation in JavaScript programming, and a solid understanding of control structures, loops, strings, and arrays. This mastery of JavaScript will significantly boost your employability and open doors to diverse career opportunities in software development.

Learn to Code: JavaScript for Absolute Beginners

What is displayed after the following program executes if the user inputs `2` and `5`, respectively?

```JavaScript
let a = prompt();
let b = prompt();
console.log(a + b);
```

What is displayed after the following program executes if the user inputs <code>2</code> and <code>5</code>, respectively?
<pre><code class="language-JavaScript">let a = prompt();
let b = prompt();
console.log(a + b);
</code></pre>

What is displayed on the screen after the following program is executed?

```JavaScript
let int1 = 19;
let int2 = 4;
console.log(int1 / int2);
```

What is displayed on the screen after the following program is executed?
<pre><code class="language-JavaScript">let int1 = 19;
let int2 = 4;
console.log(int1 / int2);
</code></pre>

What is displayed on the screen after the following program executes?

```JavaScript
let num1 = 19;
let num2 = 4;
num1 %= num2;
console.log(num1 + " " + num2);
```

What is displayed on the screen after the following program executes?
<pre><code class="language-JavaScript">let num1 = 19;
let num2 = 4;
num1 %= num2;
console.log(num1 + &quot; &quot; + num2);
</code></pre>

What is displayed on the screen after the following program is executed?

```JavaScript
let num3 = 3;
let num4 = 2;
num3 **= num4;
console.log(num3 + " " + num4);
```

What is displayed on the screen after the following program is executed?
<pre><code class="language-JavaScript">let num3 = 3;
let num4 = 2;
num3 **= num4;
console.log(num3 + &quot; &quot; + num4);
</code></pre>

What is displayed on the screen after the following program is executed?

```JavaScript
let num5 = 5, num6 = 6;
num5 /= num6;
console.log(num5 + " " + num6);
```

What is displayed on the screen after the following program is executed?
<pre><code class="language-JavaScript">let num5 = 5, num6 = 6;
num5 /= num6;
console.log(num5 + &quot; &quot; + num6);
</code></pre>

What is displayed on the screen after the following program is executed?

```JavaScript
let a = b = 34;
console.log(a + " " + b);
```

What is displayed on the screen after the following program is executed?
<pre><code class="language-JavaScript">let a = b = 34;
console.log(a + &quot; &quot; + b);
</code></pre>

What is displayed on the screen after the following program is executed?

```JavaScript
let c = 5, d = 6;
console.log(c + " " + d);
```

What is displayed on the screen after the following program is executed?
<pre><code class="language-JavaScript">let c = 5, d = 6;
console.log(c + &quot; &quot; + d);
</code></pre>

What is displayed on the screen after the following program is executed?

```JavaScript
let a = 8;
if (a > 0) {
    console.log("Positive");
    if (a % 2 == 0) {
        console.log("Even number");
    } else {
        console.log("Odd number");
    }
} else {
    console.log("Negative");
}
```

What is displayed on the screen after the following program is executed?
<pre><code class="language-JavaScript">let a = 8;
if (a &gt; 0) {
 console.log(&quot;Positive&quot;);
 if (a % 2 == 0) {
 console.log(&quot;Even number&quot;);
 } else {
 console.log(&quot;Odd number&quot;);
 }
} else {
 console.log(&quot;Negative&quot;);
}
</code></pre>

What is displayed on the screen after the following program is executed?

```JavaScript
let a = 12,
    b = 5;
if (a >= b) {
    console.log("True");
} else {
    console.log("False");
}
```

What is displayed on the screen after the following program is executed?
<pre><code class="language-JavaScript">let a = 12,
 b = 5;
if (a &gt;= b) {
 console.log(&quot;True&quot;);
} else {
 console.log(&quot;False&quot;);
}
</code></pre>

What is displayed on the screen after the following program is executed?

```JavaScript
let dividend = 12,
    divisor = 0;
console.log(dividend);
let quotient = dividend / divisor;
console.log(quotient);
```

What is displayed on the screen after the following program is executed?
<pre><code class="language-JavaScript">let dividend = 12,
 divisor = 0;
console.log(dividend);
let quotient = dividend / divisor;
console.log(quotient);
</code></pre>

Test your knowledge of JavaScript basics.

About the Course

Problem Solving with Simple Programs

Decisions and Branching

JavaScript Basics

Repetition with Loops

Strings and Arrays

Functions

Appendix - Complex Programs

Wrap Up

Quiz on JavaScript Basics