Introduction to JavaScript

Kurssisisältö

Introduction to JavaScript

1. Getting Started

First Javascript Console Application Challenge: Showing some Output Challenge: Outputing Multiple Lines Dealing with Numbers Challenge: Working with Numbers Challenge: Calculating the Speed of a Car Challenge: Calculating Area of a Trapezium Outputting Multiple Values Challenge: Consoling Meaningful Output How to Use Comments in Javascript?Challenge: Adding a Comment Multi-Line Comments Challenge: Commenting out Code What Is JavaScript anyway?

2. Manipulating Data

Storing Data Challenge: Declaring a Variable Challenge: Accessing Data From a Variable Challenge: Fixing Variable Names Challenge: Reassigning a Variable Constants Challenge: Declaring & Using Constants Performing Arithmetic On Variables Challenge: Making a Salary Calculator Challenge: Adjusting Salary with a Bonus Exploring Primitive Data Types Challenge: Declaring a Boolean Value How different Data Types Interact Challenge: Concatenating Strings Challenge: Creating User Profile & Activity Details

3. Conditional Statements

Comparison Operators Challenge: Checking Age Eligibility The `if` Statement Challenge: Weather-Based Outfit Recommender Challenge: Even or Odd Nested Conditional Statements The `else` Clause Challenge: Improving Even or Odd Checker Challenge: Temperature Advisor The `else if` Clause Challenge: Grade Categorizer ` AND` Logical Operator Challenge: Checking if a Number is Even and Positive OR Logical Operator Challenge: Accessing Control System

4. Mastering Functions

What Are Functions?Challenge: Simple Function Challenge: Calculating the Speed of a Car Scopes Passing Data into Functions Challenge: Fixing the Speed Function Challenge: Improving the Grade Categorizer Task: Defining a Compound Function Returning Data from Functions Default Values Challenge: Email Auto-Responder with Default Parameters

5. Exploring Arrays

What Are Arrays?Challenge: Defining An Array Challenge: Indexing Adding Values to an Array Challenge: Pushing Elements to an Array Removing Elements from an Array Challenge: Practicing `pop` & `shift`The `length` Property Challenge: Counting Elements The `includes` Method Challenge: Searching for Animals in the Zoo

6. Discovering Loops

The `for` Loop Task: Printing a Sequence The `while` Loop Challenge: Printing Fibonacci Sequence The `do-while` Loop Challenge: Random Multiple of 7 Using Loops with Arrays Challenge: Finding the Average Price of Items Summary

Nested Conditional Statements

We can have conditional statements inside other conditional statements. This lets us perform multiple checks before executing some code.

We can check if a number is in a specific range using this kind of an arrangement:


              123456789
            
let number = 17;

if(number >= 10) 
{
  if(number <= 20) 
  {
    console.log("The number is in the range 10-20");
  }
}

It's generally recommended to avoid nesting many conditional statements, as it makes the code harder to read and manage.

There are better methods for performing multiple checks, which we will explore in the upcoming chapters.

1. What is the main advantage of using nested conditional statements?

2. Why should you avoid nesting many conditional statements?

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Osio 3. Luku 6

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Kurssisisältö

Introduction to JavaScript

1. Getting Started

2. Manipulating Data

3. Conditional Statements

4. Mastering Functions

5. Exploring Arrays

6. Discovering Loops

Nested Conditional Statements

We can have conditional statements inside other conditional statements. This lets us perform multiple checks before executing some code.

We can check if a number is in a specific range using this kind of an arrangement:


              123456789
            
let number = 17;

if(number >= 10) 
{
  if(number <= 20) 
  {
    console.log("The number is in the range 10-20");
  }
}

It's generally recommended to avoid nesting many conditional statements, as it makes the code harder to read and manage.

There are better methods for performing multiple checks, which we will explore in the upcoming chapters.

1. What is the main advantage of using nested conditional statements?

2. Why should you avoid nesting many conditional statements?

Oliko kaikki selvää?

Kiitos palautteestasi!

Osio 3. Luku 6