Merge pull request node-red#3886 from kazuhitoyokoi/master2

Limit number of ports in function node

Author: knolleary

packages/node_modules/@node-red/nodes/core/function/10-function.html

@@ -451,11 +451,13 @@
             tabs.activateTab("func-tab-body");
 
             $( "#node-input-outputs" ).spinner({
-                min:0,
+                min: 0,
+                max: 500,
                 change: function(event, ui) {
-                    var value = this.value;
-                    if (!value.match(/^\d+$/)) { value = 1;  }
-                    else if (value < this.min) { value = this.min; }
+                    var value = parseInt(this.value);
+                    value = isNaN(value) ? 1 : value;
+                    value = Math.max(value, parseInt($(this).attr("aria-valuemin")));
+                    value = Math.min(value, parseInt($(this).attr("aria-valuemax")));
                     if (value !== this.value) { $(this).spinner("value", value); }
                 }
             });