JavaScript Loops and Iteration
Last updated: August 27, 2026. JavaScript loops repeat a block of work. Choose the loop form that makes the stopping…
Month: April 2023
JavaScript Functions
Last updated: August 27, 2026. A function groups reusable behavior, accepts parameters, and can return a value. Variables declared inside…
JavaScript Arrays
Last updated: August 27, 2026. An array is an ordered, zero-indexed collection. Use an object or Map for named keys…
JavaScript Variables: const, let, and Scope
Last updated: August 27, 2026. Use const unless a binding must be reassigned; use let for a value that changes.…
Your First JavaScript Program
Last updated: August 27, 2026. Load JavaScript as a module and update the DOM with textContent. HTML JavaScript Module scripts…
PHP Regular Expressions: preg_match, Replace, Split, and Grep
Last updated: August 25, 2026. PHP’s PCRE functions search and transform text using regular-expression patterns. Use them when the rule…