Course Content

Introduction to JavaScript

1. JavaScript Fundamentals

About JavaScript Understanding JavaScript Syntax Challenge: Console Output in JavaScript Using Comments to Document Code Challenge: Write a Single-Line Comment Challenge: Write a Multi-Line Comment

2. Variables and Data Types in JavaScript

Understanding Variables in JavaScript Challenge: Define the Variable Using const for Constants Exploring JavaScript Data Types Working with null in JavaScript Introduction to Arrays Array Methods and Manipulation Challenge: Perform Array Operations

3. Performing Operations in JavaScript

Understanding Assignment Operators Mathematical Operations in JavaScript Assignment Operators in JavaScript Increment and Decrement Operators Challenge: Variable Operations Practice Comparison Operators in JavaScript Logical Operators Explained Challenge: Compare Variables in JavaScript Concatenating Strings in JavaScript Challenge: Build Sentences with JavaScript

4. Controlling Program Flow with Conditional Statements

Mastering if Statements in JavaScript Using else for Alternative Outcomes Applying else if for Multiple Conditions Challenge: Determine Sizes with Conditionals

5. Looping Through Data in JavaScript

Understanding the while Loop in JavaScript Using the do while Loop for Iteration Challenge: Print Numbers from 5 to 9 Mastering the for Loop in JavaScript Challenge: Console Tigers with Loops Breaking Out of Loops with break Skipping Iterations with continue Challenge: Stop and Skip in Loops

6. Functions in JavaScript

What Are Functions in JavaScript?Defining Functions in JavaScript Challenge: Write a Function – My Name Using Function Arguments Effectively Returning Values from Functions Challenge: Create a Sum Function Course Summary & Next Steps

Skipping Iterations with continue

The continue keyword allows you to skip the remaining code within a loop for the current iteration and proceed to the next iteration.

Example 1: Skipping Early Iterations


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for (let i = 0; i < 10; i++) {
  if (i < 5) {
    continue;
  }

  console.log("i =", i);
}

In this example, the continue keyword is used to skip iterations of the loop where i is less than 5. As a result, only iterations with i values in the range [5, 9] execute the code inside the loop.

Example 2: Skipping a Specific Iteration


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for (let i = 1; i <= 5; i++) {
  console.log("Iteration started:", i);  

  if (i == 3) {
    continue;  // Skip the end of the 3rd iteration
  }

  console.log("- Iteration ended:", i);
}

Here, the continue statement is used to skip the end of the 3rd iteration, resulting in the output of "Iteration started" and "Iteration ended" messages for all iterations except the one where i equals 3.

Note

The continue keyword works similarly to break, but instead of terminating the loop entirely, it only skips the current iteration and proceeds with the next one. This behavior can be handy for fine-grained control of loop execution.

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Section 5. Chapter 7

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