CarlMungazi

function updateEvent(vnode, key, value) {
  if (vnode.events != null) {
    if (vnode.events[key] === value) return
    if (value != null && (typeof value === "function" || typeof value === "object")) {
      if (vnode.events[key] == null) vnode.dom.addEventListener(key.slice(2), vnode.events, false)
      vnode.events[key] = value
    }
    // ...
  }
  // ...

CarlMungazi

m.render(document.getElementById('app'), 
  m('form', {
    onreset: (e) => { 
      console.log('resetting form...')
    },
    onsubmit: (e) => { 
      e.preventDefault(); 
      console.log('submitting form...')
    },
  }, [

CarlMungazi

m.render(document.getElementById('app'), 
  m('form', {
    onsubmit: (e) => { 
      e.preventDefault(); 
      console.log('I am on the form element')
    }
  }, [
    m('button', { type: 'submit'}, 'Submit')
  ])
)

CarlMungazi

Object.defineProperty(Object.prototype, "onsubmit", {
  get() {
    return (e) => { 
      e.preventDefault();
      console.log('I am on the setter');
    }
  },
  set(val) {
    console.log(val);
  }

CarlMungazi

Object.prototype.onsubmit = 1