Kursinnhold

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

Adding Values to an Array

After defining an array, we can further add some elements to it using the push method.

Definition

A methods is a function that belongs to an object and is called using that object. The main difference is that a function is independent, while a method is tied to an object and is called using object.methodName(). For example, in this case the object is the array and the method is push.

The general syntax of the push method is:


python

Here arrayName is the name of the array to which we want to add the element, and value1, value2 and so on are the elements we want to add to that array.

Pushing an element to an array adds it to the end of the array:


              12345
            
let fruits = ["Apple", "Banana"];  

console.log(fruits); // Output: ["Apple", "Banana"]
fruits.push("Cherry");  
console.log(fruits);  // Output: ["Apple", "Banana", "Cherry"]

Notice how "Cherry" was added to the end of the fruits array using the push method.

If we have multiple values to push, they are pushed in the same order they were mentioned:


              12345
            
let fruits = ["Apple", "Banana"];  

console.log(fruits); // Output: ["Apple", "Banana"]
fruits.push("Cherry", "Mango");  
console.log(fruits);  // Output: ["Apple", "Banana", "Cherry", "Mango"]

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Seksjon 5. Kapittel 4

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Kursinnhold

Introduction to JavaScript

1. Getting Started

2. Manipulating Data

3. Conditional Statements

4. Mastering Functions

5. Exploring Arrays

6. Discovering Loops

Adding Values to an Array

After defining an array, we can further add some elements to it using the push method.

Definition

The general syntax of the push method is:


python

Here arrayName is the name of the array to which we want to add the element, and value1, value2 and so on are the elements we want to add to that array.

Pushing an element to an array adds it to the end of the array:


              12345
            
let fruits = ["Apple", "Banana"];  

console.log(fruits); // Output: ["Apple", "Banana"]
fruits.push("Cherry");  
console.log(fruits);  // Output: ["Apple", "Banana", "Cherry"]

Notice how "Cherry" was added to the end of the fruits array using the push method.

If we have multiple values to push, they are pushed in the same order they were mentioned:


              12345
            
let fruits = ["Apple", "Banana"];  

console.log(fruits); // Output: ["Apple", "Banana"]
fruits.push("Cherry", "Mango");  
console.log(fruits);  // Output: ["Apple", "Banana", "Cherry", "Mango"]

Alt var klart?

Takk for tilbakemeldingene dine!

Seksjon 5. Kapittel 4

Introduction to JavaScript

Adding Values to an Array

1. What does the `push` method do in JavaScript?

2. Which of the following is the correct syntax for using the `push` method?

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

Introduction to JavaScript

Adding Values to an Array

1. What does the `push` method do in JavaScript?

2. Which of the following is the correct syntax for using the `push` method?

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

Introduction to JavaScript

Adding Values to an Array

1. What does the push method do in JavaScript?

2. Which of the following is the correct syntax for using the push method?

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

Introduction to JavaScript

Adding Values to an Array

1. What does the push method do in JavaScript?

2. Which of the following is the correct syntax for using the push method?

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

1. What does the `push` method do in JavaScript?

2. Which of the following is the correct syntax for using the `push` method?

1. What does the `push` method do in JavaScript?

2. Which of the following is the correct syntax for using the `push` method?