The Netutility

Learn JavaScript Promises with simple examples of pending, fulfilled and rejected states, then(), catch(), finally(), chaining and Promise.all().

Learn JSON in JavaScript with practical examples of JSON syntax, JSON.parse(), JSON.stringify(), arrays, objects, localStorage and API data.

Learn JavaScript form validation with practical examples for required fields, email, password, checkbox, custom errors and submit handling.

Learn JavaScript events with simple examples of click, input, change, submit, keydown, event objects, preventDefault, bubbling and event delegation.

Learn JavaScript DOM manipulation with simple examples of selectors, text, HTML, classes, styles, attributes, creating elements and removing elements.

Learn JavaScript objects with simple examples of properties, methods, dot and bracket notation, nested objects, Object.keys(), entries and common mistakes.

Learn JavaScript arrays with simple examples of indexes, length, push, pop, shift, unshift, slice, splice, includes, loops and common mistakes.

Learn JavaScript functions with simple examples of declarations, parameters, arguments, return values, expressions and arrow functions for beginners.

Learn JavaScript loops with simple examples of for, while, do…while and for…of. Understand break, continue, nested loops and common mistakes.

Learn JavaScript if else with simple examples of if, else if and else. Understand conditions, multiple checks, nesting and common beginner mistakes.