Kursinnehåll

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

The `for` Loop

One of the most popular loops, which is available in almost every programming language, is known as the for loop. The for loop is primarily used for executing a block of code a specific number of times.

The general syntax of the for loop is as follows:

js

The initialization part is where we declare & initialize a variable, this part is executed only once - at the start of the loop. The boolean expression in place of the condition defines the loop condition - the loop executes as long as that condition is true. The operation can be any expression which is evaluated or executed after every successful iteration.

The flow of a for loop can be better understood through a flowchart:

Following is an example of a simple for loop which executes a block of code 15 times:


              123
            
for(let i = 0; i < 15; i++) {
  console.log("This is the " + i + "th iteration");
}

Var allt tydligt?

Tack för dina kommentarer!

Avsnitt 6. Kapitel 1

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Kursinnehåll

Introduction to JavaScript

1. Getting Started

2. Manipulating Data

3. Conditional Statements

4. Mastering Functions

5. Exploring Arrays

6. Discovering Loops

The `for` Loop

The general syntax of the for loop is as follows:

js

The flow of a for loop can be better understood through a flowchart:

Following is an example of a simple for loop which executes a block of code 15 times:


              123
            
for(let i = 0; i < 15; i++) {
  console.log("This is the " + i + "th iteration");
}

Var allt tydligt?

Tack för dina kommentarer!

Avsnitt 6. Kapitel 1

Introduction to JavaScript

The `for` Loop

1. What is the primary purpose of a `for` loop?

2. In the `for` loop syntax, which part is executed only once?

3. What will be the output of the following code?

Introduction to JavaScript

The `for` Loop

1. What is the primary purpose of a `for` loop?

2. In the `for` loop syntax, which part is executed only once?

3. What will be the output of the following code?

Introduction to JavaScript

The `for` Loop

1. What is the primary purpose of a for loop?

2. In the for loop syntax, which part is executed only once?

3. What will be the output of the following code?

Introduction to JavaScript

The `for` Loop

1. What is the primary purpose of a for loop?

2. In the for loop syntax, which part is executed only once?

3. What will be the output of the following code?

1. What is the primary purpose of a `for` loop?

2. In the `for` loop syntax, which part is executed only once?

1. What is the primary purpose of a `for` loop?

2. In the `for` loop syntax, which part is executed only once?