JavaScript Programming Language

let/const/var, numbers, strings, booleans.

Declare variables of each type and print them.

Declare and use variables of the core data types.

Arithmetic, comparison, logical operators.

Solve small calculation and comparison exercises.

Use operators correctly to compute and compare values.

if/else statements, comparison logic.

Write a script that branches based on user-defined values.

Write basic conditional logic.

switch statements, nested conditions.

Solve 2–3 practice problems using switch/nested conditions.

Choose between if/else and switch appropriately.

for loops, loop structure.

Write loops to iterate and accumulate results.

Write a working for loop for a given task.

while/do-while loops, break/continue.

Solve practice problems requiring while loops and early exits.

Choose and write the right loop type for a task.

Declaring/calling functions, parameters, return values.

Refactor earlier scripts into reusable functions.

Write and call functions with parameters and return values.

Arrow functions, variable scope.

Convert functions to arrow syntax and explore scope with examples.

Use arrow functions and reason about variable scope.

Creating arrays, indexing, common array methods (push/pop/length).

Build and manipulate a sample array.

Create and perform basic operations on arrays.

Iterating arrays with forEach/map/filter.

Solve practice problems transforming array data.

Iterate and transform array data using modern methods.

Object literals, properties/methods, dot vs bracket notation.

Model a small real-world entity (e.g. a 'user') as an object.

Create and work with objects to model data.

Selecting DOM elements, reading/changing content and styles.

Write a script that changes page content on load.

Read and modify the DOM with JavaScript.

Event listeners, handling user interaction (clicks, input).

Wire buttons/inputs to trigger script actions.

Make a page interactive by responding to user events.

Console methods, reading error messages, browser dev tools.

Intentionally break code, then find and fix the bugs using dev tools.

Diagnose and fix common JS errors using dev tools.

Combining everything into one small app.

Build a small interactive project (e.g. calculator or to-do list) end to end.

Independently plan and build a small interactive JS application.