Build safer JavaScript applications with practical TypeScript lessons covering types, functions, interfaces, classes, generics, modules, utility types, and strict project configuration.
TypeScript is JavaScript with static type checking. It helps developers describe variables, function parameters, objects, API responses, components, and reusable helpers before code runs. The compiler checks those contracts and then emits plain JavaScript for the browser, Node.js, or your build tool.
Basic JavaScript knowledge is helpful. You should understand variables, functions, arrays, objects, and modules.
Frontend, backend, React, Angular, Vue, Node.js, and full-stack developers who want safer application code.
Core types, inference, interfaces, aliases, unions, classes, generics, narrowing, modules, and utility types.
Node.js, npm, TypeScript compiler, a code editor such as VS Code, and a terminal for running examples.
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