sketch-extract-text/src/save-to-clipboard.js

A Sketch plugin to extract text from layers that match a regular expression

export default function saveToClipboard (string) {
  const pasteBoard = NSPasteboard.generalPasteboard()
  pasteBoard.clearContents()
  pasteBoard.setString_forType(
    ensureStringEndsWithNewline(string),
    NSStringPboardType
  )
}

function ensureStringEndsWithNewline (string) {
  return string.charAt(string.length - 1) !== '\n' ? string + '\n' : string
}