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core-dts

v0.0.3

Published

TypeScript will support all proposals above stage-3. But there are always some gap between TypeScript support and proposal progress. And sometimes we want to use proposals within stage-3 (e.g. `Iterator helper`) because we may use polyfill.

Downloads

403

Readme

core-dts

TypeScript will support all proposals above stage-3.
But there are always some gap between TypeScript support and proposal progress.
And sometimes we want to use proposals within stage-3 (e.g. Iterator helper) because we may use polyfill.

In this case, we have to write those declarations by our own. But with core-dts, we can use these proposal with additional declaration files.

Install

pnpm add core-dts -D

Setup

Set add core-dts into types in compiler options.

{
  "compilerOptions": {
    "types": ["core-dts"]
  }
}

Proposals

Default proposals are above stage-3. If you want to use something like stage-2 proposal.

{
  "compilerOptions": {
    "types": ["core-dts/src/proposals/stage-2"]
  }
}

Or you want to use some specific proposal.

{
  "compilerOptions": {
    "types": ["core-dts/src/proposals/stage-2/iterator-helper.d.ts"]
  }
}

Features

  • [x] Finished proposals
    • [x] Array find from last
  • [x] Stage 3 proposals
    • [x] Array grouping
    • [x] Change Array by copy
  • [x] Stage 2 proposals
    • [x] Iterator helpers
    • [x] New Set methods
    • [x] Map.prototype.emplace
    • [x] Array.fromAsync
    • [x] Array.isTemplateObject
    • [x] Symbol.{ asyncDispose, dispose } for using statement
    • [x] Symbol.metadataKey for decorators metadata proposal
  • [x] Stage 1 proposals
    • [x] Observable
    • [x] New collections methods
    • [x] .of and .from methods on collection constructors
    • [x] compositeKey and compositeSymbol
    • [x] Array filtering
    • [x] Array deduplication
    • [x] Getting last item from Array
    • [x] Number.range
    • [x] Number.fromString
    • [x] Math extensions
    • [x] Math.signbit
    • [x] String.cooked
    • [x] String.prototype.codePoints
    • [x] Symbol.matcher for pattern matching
  • [x] Stage 0 proposals
    • [x] Function.prototype.unThis
    • [x] Function.{ isCallable, isConstructor }