A. Ghafoor Sayyed

Introduction to JavaScript functions — function declarations, function expressions, arrow functions, parameters, default values, rest/spread, return values, and the difference between calling and referencing.

A practical guide to branching in modern JavaScript — truthy and falsy rules if / else if / else, switch, the ternary operator, short-circuit evaluation optional chaining (?.), and nullish coalescing (??).

A modern, practical tour of JavaScript arrays — literal vs constructor creation, sparse-array gotchas, the full iteration toolkit (forEach, map filter, reduce, flat, find, some, every), destructuring and spread, and when to reach for typed arrays.

A modern, ES6+ first guide to declaring variables in JavaScript — when to use const, when to use let, why var still exists, and how scope, hoisting, and the temporal dead zone actually work.

Practical prompt patterns for OpenManus — from web research and code generation to file operations and multi-step agent workflows.