MSK JavaScript Bootcamp

Brendan Eich, father of JavaScript, created the language for Netscape Navigator and a prototype-based foundation. His work spans browser scripting to Node.js, Mozilla, and Brave Software, illustrating JavaScript's growth.

Explore the ECMAScript specification as the standard for JavaScript, not a language, and see how editions from six to eleven shape browser interoperability through real-world analogies and MDN resources.

Explore ES2015 / ES6 features such as const scoping, lexical this, generators, object matching, and static members, and see how these concepts drive patterns used with Redux Saga.

Explore how JavaScript operates as a single-threaded, non-blocking, asynchronous concurrent language, with the event loop and callback queue, in browser and node environments, and its prototype-based design.

Understand what a JavaScript engine is, from interpreters to just-in-time compilers that run code in browsers or Node.js. See Chrome's V8 engine, written in C++, and how engines differ.

Compare how browsers Chrome, Firefox, and Edge rely on engines V8, SpiderMonkey, and Blink, shaping performance, features, and cross-browser behavior.

Explore why the V8 engine is the gold standard for JavaScript performance. Learn how just-in-time compilation and open-source collaboration, led by Google, keep it the fastest.

Explore JavaScript data types, from primitive types like strings, numbers, booleans, undefined, and null to objects with prototypes, including the special not a number quirk and symbols.

Explore JavaScript operators—arithmetic, assignment, bitwise, and logical—along with rest and spread syntax, plus type and instance checks to understand operator behavior.

Master lexical scope in JavaScript through a two-pass just-in-time compilation model, uncovering how outer and inner scopes determine variable access, undefined values, and the myth of hoisting.

Hoisting moves variable and function declarations to the top of their scope before execution, as the compiler runs multiple passes—from gathering declarations to executing them—and engines optimize via later passes.

Master functions to become a JavaScript expert, exploring function types, data manipulation, and prototypes. Recognize that JavaScript centers on functions and enables object creation through them.

Discover how functions form the foundation of JavaScript, explore prototypes, and compare function expressions, arrow functions, no-parameter functions, and generator functions.

Explore how prototypes and the prototype chain link objects in JavaScript, enabling inheritance, memory efficiency, and reusability through the capital object and its prototype.

Learn how the call, apply, and bind methods alter the this context within a function, enabling lexical context changes for libraries and user-provided contexts, with practical examples.

Explore the immediately invoked function expressions pattern in JavaScript, showing how IIFEs initialize variables and attach functions to the window object when a file loads.

Explore whether JavaScript runs on a single thread, examine blocking versus non-blocking behavior in the browser, and reveal how the event loop enables asynchronous tasks.

Explain how the event loop makes JavaScript feel multithreaded by coordinating the call stack, web APIs, and a callback queue; asynchronous tasks are moved off the stack and executed later.

Explore Google Chrome DevTools, using the elements panel, styles, box model, and console to locate items and run JavaScript, then use network, resources, memory, and Lighthouse to profile performance.

Master JavaScript string manipulation and all standard string methods to confidently convert between strings and arrays, essential for daily work and front-end interviews.

Discover static string methods and prototype methods in JavaScript, and learn core operations like charAt, codePointAt, concat, endsWith, includes, indexOf, slice, split, trim, and more.

Create a personal cheat sheet of JavaScript string methods and organize it as a mind map, sticky-note reference, or printout to quickly solve problems in interviews.

Master a cheat sheet of JavaScript string methods, including toLowerCase, toUpperCase, trim, valueOf, charCodeAt, startsWith, endsWith, includes, indexOf, lastIndexOf, match, split, substr, substring, and slice.