Looking into triggering events without jQuery. Turns out you can just use some events as methods, for example .click() or .blur(). I’d love to find a listing reference for these methods, but haven’t found one yet.

I’m using .blur() to dismiss the iOS keyboard once a text input has been focused.

var input = document.getElementById('input'),
    button = document.getElementById('button'),
    onClick = function(){
      input.blur();
    };

button.addEventListener( 'click', onClick, false);

See fiddle: trigger blur to dismiss iOS keyboard