Function defer

packages/shared/src/function.ts:33–43

(callback: () => void)

 * Executes the callback function after the current call stack has been cleared.
 */
export function defer(callback: () => void): void {
  if (typeof setTimeout === 'function') {
    setTimeout(callback, 0)
  }
  else {
    Promise.resolve()
      .then(() => Promise.resolve()
        .then(() => Promise.resolve()
          .then(callback)))
  }
}