Delay redraw for debounced events,based on https://www.npmjs.com/package/debounce

mithril-debounce.js

import m from 'mithril';
import now from 'date-now';

export default function debounce(func, wait = 100, immediate = false) {
  let context, args, timestamp, timeout, result;

  function debounced() {
    context = this;
    args = arguments;
    timestamp = now();

    if (!timeout) {
      m.startComputation();

      timeout = setTimeout(later, wait);

      if (immediate) {
        result = func.apply(context, args);
        context = args = null;
      }
    }

    return result;
  }

  function later() {
    const elapsed = now() - timestamp;

    if (elapsed < wait && elapsed > 0) {
      timeout = setTimeout(later, wait - elapsed);
    } else {
      timeout = null;

      if (!immediate) {
        result = func.apply(context, args);
        context = args = null;
      }

      m.endComputation();
    }
  }

  return debounced;
}