put function in variable

partials/GridEditor.vue

@@ -454,39 +454,42 @@
     },
     methods: {
       intersectionChanged (obj) {
-        //
+        let _offsetLeft = Math.sign(obj.offsetLeft)
+
         // -------------------- move
         if (obj.element === 'move') {
           this.tempHandler.move.intersectingMain = obj.intersecting
 
           // behind left side
-          if (Math.sign(obj.offsetLeft) < 0) {
+          if (_offsetLeft < 0) {
             this.tempHandler.move.side = 'left'
           }
           // intersecting
-          else if (isNaN(Math.sign(obj.offsetLeft))) {
+          else if (isNaN(_offsetLeft)) {
             if (this.tempHandler.move.intersectingMain && this.tempHandler.move.side === 'right') this.tempHandler.resize.intersectingMain = false
           }
           // behind right side
-          else if (Math.sign(obj.offsetLeft) === 1) {
+          else if (_offsetLeft === 1) {
             this.tempHandler.move.side = 'right'
             this.tempHandler.resize.intersectingMain = true
           }
         }
 
         // -------------------- resize
-        if (obj.element === 'resize') {
+        else if (obj.element === 'resize') {
           this.tempHandler.resize.intersectingMain = obj.intersecting
 
           // on left side
-          if (Math.sign(obj.offsetLeft) === -1) {
+          if (_offsetLeft === -1) {
             this.tempHandler.resize.side = 'left'
           }
+          /*
           // intersecting
           else if (isNaN(Math.sign(obj.offsetLeft))) {
           }
+          */
           // on right side
-          else if (Math.sign(obj.offsetLeft) === 1) {
+          else if (_offsetLeft === 1) {
             this.tempHandler.resize.side = 'right'
           }
         }