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.
How JavaScript went from a 10-day prototype in 1995 to the modern, standardised ECMAScript language powering the web, Node.js, and edge runtimes in 2024.
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