bare-type-stripper

Heuristic lexer for stripping TypeScript type syntax to produce plain JavaScript

stable

bare-type-stripper — Heuristic lexer for stripping TypeScript type syntax to produce plain JavaScript. It is a native addon.

npm i bare-type-stripper

Usage

const strip = require('bare-type-stripper')

strip(`
  const x: number = 1
  function f<T>(xs: T[]): T { return xs[0] }
`).toString()

// '
//   const x         = 1
//   function f   (xs   )    { return xs[0] }
// '

Strip TypeScript-only syntax from input and return plain JavaScript as a Buffer. Stripped regions are replaced with spaces (newlines preserved) so the output has the same byte length as the input, keeping stack traces and source positions aligned.

Parameters

Parameter	Type	Default	Description
`input`	`string` \| `Buffer`	—	The TypeScript source to strip, as a string or a `Buffer`.
`encoding?`	`BufferEncoding`	—	Encoding used to decode `input` when it is a string (default `'utf8'`); ignored when `input` is already a `Buffer`.
`opts?`	`object`	—	An options object; currently unused.

Throws

TypeError — input is neither a string nor a buffer.
SyntaxError — the source contains non-erasable TypeScript syntax (enum/const enum, namespace/module with a body, parameter properties, or angle-bracket type assertions).

bare-type-stripper

Usage

API

Functions

`strip(input: string | Buffer, encoding?: BufferEncoding, opts?: object): Buffer`

See also

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