Click

<div id='diagram'></div>
<script>
  $("#diagram").kendoDiagram({
    shapes: [
      {
        id: "1",
        content: {
          text: "Monday"
        }
      },
      {
        id: "2",
        content: "Tuesday"
      }
    ],
    connections: [

      {
        from: "1",
        to: "2"
      }
    ],
    layout: {
      type: "tree"
    },
    click: function(e) {
      if(e.item instanceof kendo.dataviz.diagram.Shape)
/* The result can be observed in the DevTools(F12) console of the browser. */
        console.log(e.item.options.content? e.item.options.content.text: "No content.");
      else
/* The result can be observed in the DevTools(F12) console of the browser. */
        console.log("Clicked a connection.");
    },
    shapeDefaults: {
      type: "circle",
      width: 70,
      height: 70,
      hover: {
        fill: "Orange"
      }
    },
    connectionDefaults: {
      type: "polyline",
      startCap: "FilledCircle",
      endCap: "ArrowEnd"
    }
  })
</script>