JavaScript Tutorial: Learn JavaScript from Scratch
An open-source programming language called JavaScript enables users to develop web-based apps. It's crucial to understand what JavaScript is and how it works before moving on to the fundamentals of the language and how to build various functions. In order to set the stage for the subsequent lessons, this lesson provides you with an introduction to the JavaScript programming language.
It's time for you to try writing code in JavaScript now that you understand what it is. This lesson walks you through the process of building code to print Hello World in your browser window in a comprehensive, step-by-step manner.
A list of values of the same data type can be stored in a JavaScript data structure called an array. In this JavaScript tutorial session, array operations and functions will be covered. Additionally, MapReduce and Filter will be covered.
JavaScript array filters are used to remove specific components from an array according to the test condition that the programmer specifies. In order to accomplish this, the filter runs through each element, determining if it satisfies the test condition and filtering it out appropriately. This session explains array filters and provides you with practical, understandable examples to help you put them to use. The restrictions associated with JavaScript array filters as well as browser compatibility are also covered.
One helpful JavaScript function for condensing an array to a single value is array reduce. You will learn about array reduce, reducer, and accumulator in this lesson, along with several examples that will help you grasp their functionality.
Programming structures called loops are used to repeatedly carry out a series of instructions in a code. You will learn about the several iterative statements used in JavaScript, such as do-while, for, and for-in loops, in this session of the JavaScript course.
By avoiding writing the same code repeatedly, a JavaScript function saves programmers time and effort. When required, the application can call this reusable section of code from anyplace. You will learn all about JavaScript functions and their types in this lesson of the JavaScript tutorial, including how they are declared, written, and used.
JavaScript allows an inner function to access the variables of the outer function through a feature called a closure. They aid in the programmer's definition of what is and isn't inside the scope of a function. You will learn about closure, its characteristics, variable scope, and code examples in this session.
This JavaScript tutorial course covers all the fundamentals of this keyword in JavaScript, along with introducing the idea of references and acquainting you with its global and local scope.
A web application should be intelligent enough to verify the data that the user has stored and be designed to be interactive. This is the point at which JavaScript Form Validation is useful! As the name suggests, form validation verifies and ascertains the accuracy of the data or information submitted. In this JavaScript tutorial class, you will learn all about it.
Regular expressions are character sequences that come together to create a pattern of search terms. JavaScript Regular Expressions, flags, patterns, quantifiers, and metacharacters will all be covered in this session, along with examples and a demo.
To guarantee that only legitimate data is sent from the client side of the application to the server, JavaScript validation is essential. This tutorial will explain validation and show you how to validate an email address in JavaScript using in-depth code and output.
A function may take longer to execute if it must wait for a resource before making a network request. In this scenario, the function freezes while it waits for the next command. The use of asynchronous programming is necessary to address this issue. You can carry out and carry out the subsequent stages using the promise feature without modifying or straining the primary execution thread. In this JavaScript tutorial session, learn everything there is to know about JavaScript Promises.
Web developers are definitely using JavaScript more and more, and in this session you will learn about its main feature: the asynchronous programming structures known as JavaScript async/await. These are constructed to define asynchronous operations inline on top of promises and generators. In this JavaScript tutorial, you will discover everything there is to know about synchronous and asynchronous programming as well as JavaScript async functions. The list goes on: you will also receive await and JavaScript async samples.
JavaScript uses the Document Object Model (DOM), which is built by the browser when a webpage is rendered, to access a webpage's contents. Are you curious as to how it would go? The JavaScript tutorial will help you with that! Discover everything there is to know about DOM right now.
This Javascript tutorial class will teach you about objects, including how to create them and their various properties, methods, and accessors. Any object-oriented programming language must include objects, so it's critical to understand the idea thoroughly so you can use it in practical applications.
Programmers like JavaScript because it is a lightweight and fast programming language when compared to many others, especially when creating games. In this course, you will learn how to use the JavaScript programming language to create two games: tic tac toe and snake, step-by-step.
In this session, you will learn how to create a calculator app using JavaScript. Assuming you are familiar with the fundamentals of HTML and CSS, the calculator app will be developed using HTML, CSS, and JavaScript. Start this session with a step-by-step guide to construct your own calculator app.
JavaScript may be used to create many more useful, both basic and complicated, apps besides calculators. You will be learning some of the more basic practical uses for the JavaScript programming language in this session. These include creating a weather app and a to-do list with a comprehensive, clear-cut tutorial.
An essential component of object-oriented programming is data. OOP prevents inadvertent changes to the data from occurring from an external function. Data and functions are constructed around the things that make up problems. The fundamentals of object-oriented programming (OOP) as well as associated ideas like JavaScript class implementation and encapsulation will be covered in this session.
Basic components of JavaScript include variables, functions, control flow, and data types, to name a few. For the programming language to be implemented, it is essential to comprehend these core JavaScript components. The goal of this course is to provide some clarity on the basic principles and more complex ideas of JavaScript and its numerous tools.
Java is a widely used programming language, and Microsoft's robust.NET framework is also quite well-liked. By contrasting Java with.NET, this lesson will introduce you to both and explain when and how to utilize either.
It is essential to comprehend every JavaScript idea in order to utilize the programming language. To pass a JavaScript interview, there are a few ideas you should be fully conversant with when you show up. To help you get more clarity and be well-prepared, this session provides you with the most typical and significant JavaScript interview questions for both experienced and novice candidates.
JavaScript's typeof operator returns the data type to the operand that was passed to it after type-checking it. It is not necessary to confirm the variable type when declaring variables in JavaScript. Before executing, the data type can be verified with the Typeof operator. This course will cover the various operand types that Typeof can verify as well as how to use Typeof with these operands through a number of typical use cases.
The job descriptions serve as the basis for this lesson's advice on how to ace JavaScript interviews. These pointers will help you breeze through code interviews and acquaint you with some important areas to concentrate on, like the company's specifics, your communication abilities, and a few sample coding questions to use in the event of an interview.
Once another function has finished running, the JavaScript callback function is triggered. It is supplied as an argument to another function, where it is executed. With examples, this lecture clarifies the significance and varieties of callback functions.
An event is a process that happens as a result of user instructions provided as input for a result. With the aid of code snippets, you will learn about several JavaScript types and some popular event listeners in this session.
You can take the first step toward becoming a professional web developer by using this JavaScript tutorial. So, complete all of the tutorial's lessons to establish a solid JavaScript foundation and move one step closer to a lucrative web development profession!
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