Useful JavaScript utilities

Line Reader

Split text into lines

import { makeLineReader } from "@lsdsoftware/utils"

myStream.pipe(makeLineReader(line => console.log(line)))

Semaphore

Control concurrent access to resources

import { makeSemaphore } from "@lsdsoftware/utils"

const semaphore = makeSemaphore(3)

const result = await semaphore.runTask(async () => {
  //use the limited resource
})

Connect Socket

Observable wrapper for net.connect (see connect-socket.test.ts for usage)

Spawn Child

Observable wrapper for child_process.spawn (see spawn-child.test.ts for usage)