[Soptareanu @Alex]

Hello, i do some changes in my view-cart layout in order to looks like in capture. For that i replace quantity_box.twig with my new implementation.
This is my own quantity_box.twig file

{##
 # Main element (input)
 #
 # @ListChild (list="product.quantity-box", weight="20")
 #}
 
<div class="fdmteam_quantity">	
	<input type="hidden" class="{{ this.getClass() }}" id="{{ this.getBoxId() }}" value="{{ this.getBoxValue() }}" name="{{ this.getBoxName() }}" >
	<span class="fdmteam_quantity_value" id="count-{{ this.getBoxId() }}">			
		{{ this.getBoxValue() }}	
	</span>
	<span class="fdmteam_quantity_label">
		{{ t(this.getBoxTitle()) }}
	</span>
</div>

<div class="fdmteam_quantity_plus"  id="plus-{{  this.getBoxId() }}"></div>
<div class="fdmteam_quantity_minus" id="minus-{{ this.getBoxId() }}"></div>

<script>

document.body.addEventListener('click', function(event){
	var _target_p = "plus-{{ this.getBoxId() }}" ;
	var _target_m = "minus-{{ this.getBoxId() }}" ;
	var _input    = "{{ this.getBoxId() }}";
	var _span     = "count-{{ this.getBoxId() }}";
	if(event.target.id == _target_p){
		var i = parseInt(document.getElementById(_input).value) ;
		i++;
		document.getElementById(_span).innerHTML = i;
		document.getElementById(_input).value	 = i;
		// do update cart !!
	}else if(event.target.id == _target_m){
		var i = parseInt(document.getElementById(_input).value) ;
		i--;
		if(!i){
			return false;
		}else{
			document.getElementById(_span).innerHTML = i;
			document.getElementById(_input).value	 = i;
			// do update cart !!
		}
	}
});

</script>

The question is how to put updateCart trigger in order to work properly as default implementation. I want to update quantity of item when i press + - button.