RE: typescript

Install

# installing TypeScript compiler
npm install -g typescript

Compiler

# compiling index.ts

types

• Boolean: flag that contains true or false values.
• Array: collection of typed elements.
• Tuple: similar to array, but with a fixed number of typed elements.**
• Enum: friendly names to sets of numeric values.
• Any: an indicator that a variable/parameter can be anything at all.
• Void: to indicate that a function wont return anything.
• Never: to indicate that a function always throws an exception or never finishes its execution.

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