Master JavaScript variables and data types, including scope and declaration with var, let, and const. Understand primitive and reference types for effective coding.
Explore how the 'new' operator initializes object instances in JavaScript, its significance in object-oriented programming, and the consequences of omitting it.
Learn how to verify prototype relationships in JavaScript using instanceof and isPrototypeOf. Understand their usage, limitations, and best practices for checking object prototypes.
Learn how to invoke functions and pass control to them in JavaScript. Understand the difference between defining and calling functions, and explore execution flow with examples.
Explore the essential components of recursive functions in JavaScript, focusing on base and recursive cases. Learn how to implement recursion effectively and avoid common pitfalls.
Learn how to manipulate text using the string type in TypeScript, explore template literals for string interpolation, and discover common string methods with practical examples.
Explore the `void` type in TypeScript, learn how to define functions that do not return a value, and understand the differences between `void`, `null`, and `undefined`.
Explore the `never` type in TypeScript, its role in representing functions that never return, and its use cases in type inference and control flow analysis.
Explore the differences between `let`, `const`, and `var` in TypeScript, focusing on scope, reassignment, and best practices for variable declarations.
Explore the fundamental components of JavaScript syntax, including keywords, identifiers, and literals. Learn how statements form programs and the role of semicolons in JavaScript.
Explore the built-in `arguments` object in JavaScript functions, learn how to access function arguments, and understand its array-like nature. Compare it with rest parameters and discover practical examples and common pitfalls.
Explore the essentials of type conversion in JavaScript, including implicit coercion and explicit conversion using String(), Number(), and Boolean() functions. Learn when and why type conversion is necessary for accurate programming.
Explore the new syntax and features introduced in ES6, including let and const, arrow functions, template literals, default parameters, and destructuring assignments.
Explore the fundamental arithmetic operators in JavaScript, including addition, subtraction, multiplication, division, modulus, exponentiation, increment, and decrement. Understand operator precedence and associativity to master basic calculations in programming.
Learn how to use indexable types in TypeScript to type arrays and objects accessed via indices or keys. Explore index signatures, dynamic keys, and practical examples.
Learn how to control the flow of your JavaScript programs using conditional statements, including if, else if, else, and the ternary operator. Understand truthy and falsy values to write efficient code.
Learn how JavaScript determines the order of operation evaluation with operator precedence and associativity. Understand how to use parentheses to control evaluation and avoid common mistakes.
Learn the fundamentals of the JavaScript `if` statement, a crucial tool for controlling program flow based on conditions. Explore syntax, examples, and best practices for beginners.
Learn how to handle multiple conditions in JavaScript using the `else if` clause. Understand the logical flow and efficiency considerations for effective programming.
Explore the fundamentals of the `while` loop in JavaScript, including its syntax, usage, and scenarios where it is preferred over other loops. Learn to prevent infinite loops and enhance your programming skills.
Explore frequent issues in JavaScript type conversion, learn to identify and avoid common pitfalls, and discover strategies for writing defensive code.
Learn how to use the return statement in JavaScript functions to output values, understand functions without return statements, and explore early returns based on conditions.
JS & TS Mastery Library provides tutorials, examples, and advanced topics on JavaScript and TypeScript to help developers build dynamic web applications and harness TypeScript’s static typing for large-scale projects.