DeveloperBreeze

Javascript Functions Development Tutorials, Guides & Insights

Unlock 4+ expert-curated javascript functions tutorials, real-world code snippets, and modern dev strategies. From fundamentals to advanced topics, boost your javascript functions skills on DeveloperBreeze.

Tutorial
javascript

Non-Primitive Data Types (Objects, Arrays, and Functions) 

  let person = {
    name: "Alice",
    age: 25,
    isStudent: true,
  };
  • Accessing Properties:
  • Dot notation:

Dec 11, 2024
Read More
Tutorial
javascript

JavaScript Tutorial for Absolute Beginners 

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>JavaScript Tutorial</title>
</head>
<body>
  <h1>Welcome to JavaScript!</h1>
  <script src="script.js"></script>
</body>
</html>

Now, create a new file named script.js in the same directory as your index.html file. This is where you’ll write your JavaScript code.

Sep 02, 2024
Read More
Tutorial
javascript

Understanding call, apply, and bind in JavaScript 

function greet(greeting, punctuation) {
    console.log(greeting + ' ' + this.name + punctuation);
}

const person = { name: 'Alice' };

greet.call(person, 'Hello', '!');  // Output: "Hello Alice!"

In this example, greet is called with person as the this value, and 'Hello' and '!' as arguments. The this inside the greet function refers to person.

Aug 30, 2024
Read More
Cheatsheet
javascript

JavaScript Utility Libraries Cheatsheet 

<table>
  <tr>
    <th>Function</th>


 <th>Description</th>
    <th>Example</th>
  </tr>
  <tr>
    <td><code>format(date, formatString)
    Formats the date according to the provided format string.
    format(new Date(), 'MMMM do, yyyy') => 'September 20th, 2024'
  
  
    addDays(date, amount)
    Returns a new date with the specified number of days added.
    addDays(new Date(), 10) => Date object 10 days in the future
  
  
    differenceInDays(dateLeft, dateRight)
    Returns the number of days between two dates.
    differenceInDays(new Date('2024-09-20'), new Date('2024-09-10')) => 10
  
  
    isBefore(date, dateToCompare)
    Checks if the first date is before the second one.
    isBefore(new Date('2024-09-10'), new Date('2024-09-20')) => true
  
  
    parse(dateString, formatString, referenceDate)
    Parses a date string according to the provided format string.
    parse('20th September 2024', 'do MMMM yyyy', new Date()) => Date object for 20th September 2024

This cheatsheet covers some of the most popular JavaScript utility libraries, providing a quick reference to key functions and their usage. These libraries help streamline your development process, reduce code duplication, and enhance the functionality of your JavaScript applications.

Aug 21, 2024
Read More