Function keyPattern

test/parallel/test-util-inspect.js:2447–2449

(k)

{
  const [open, close] = inspect.colors[inspect.styles.string];
  const keyPattern = (k) => new RegExp(
    `\\u001b\\[${open}m\\[${k}\\]\\u001b\\[${close}m: `
  );
  const colored = util.inspect(new Uint8Array(0), { showHidden: true, colors: true });
  assert.match(colored, keyPattern('BYTES_PER_ELEMENT'));
  assert.match(colored, keyPattern('length'));