Introduction to javascript

Learn to use conditional statements in JavaScript, including if statements, else if chains, and else blocks to check conditions such as greater than, even numbers, and specific values.

Learn JavaScript looping statements—for, while, and do-while—and their syntax with initialization, condition, and increment, plus examples that print 1 to 5 and filter even numbers.

Learn how switch statements evaluate multiple cases in JavaScript, use break to exit a case, and apply continue to skip iterations, with practical grade example and default handling.

Explore arrays in JavaScript by learning concat, copy, includes, index, join, push, pop, reverse, shift, and split, and how to create them with literals or the new keyword.

Explore string creation in JavaScript using string literals and string objects, perform concatenation, and use indexOf, lastIndexOf, and search with regular expressions to locate characters and substrings.

Explore string functions in JavaScript, including match for a regular expression, replace to modify text, and substring and slice for extracting parts, plus converting to lower or upper case.

Explore the JavaScript Math object and its operations, including powering a base, calculating square roots, and using min, max, random, and cosine functions to perform common numerical tasks.

Create and display date objects using local date and time formats in the browser. Use setInterval and setTimeOut for delayed or repeated actions, including changing background color and alert delays.

Explore using functions in JavaScript by declaring, defining, and calling functions, with examples like a display function using alert and a multiplication function with X and Y.

Explore how onmouseover and onmouseout events control image dynamics on web pages, handling mouse interactions to dynamically adjust image size and swap images.

Explore how onclick and onsubmit events trigger alert messages and form submissions, using a button to display feedback and handle user input in JavaScript.

Explore onload and onblur events in JavaScript, triggering actions when a page loads and when an input loses focus, using functions and alerts to update the page.