diff --git a/lib/DataSet.js b/lib/DataSet.js
index ca1ef8878..6b3450ba5 100644
--- a/lib/DataSet.js
+++ b/lib/DataSet.js
@@ -321,7 +321,7 @@ DataSet.prototype.update = function (data, senderId) {
  * {String | function} [order]  Order the items by a field name or custom sort function.
  * @throws Error
  */
-DataSet.prototype.get = function (args) {
+DataSet.prototype.get = function (args) {  // eslint-disable-line no-unused-vars
   var me = this;
 
   // parse the arguments
diff --git a/lib/DataView.js b/lib/DataView.js
index 04725868f..8d8ec7884 100644
--- a/lib/DataView.js
+++ b/lib/DataView.js
@@ -158,7 +158,7 @@ DataView.prototype.refresh = function () {
  *                              DataTable.
  * @param args
  */
-DataView.prototype.get = function (args) {
+DataView.prototype.get = function (args) {  // eslint-disable-line no-unused-vars
   var me = this;
 
   // parse the arguments
diff --git a/lib/network/CachedImage.js b/lib/network/CachedImage.js
index fde6cb054..d35e8cb48 100644
--- a/lib/network/CachedImage.js
+++ b/lib/network/CachedImage.js
@@ -9,6 +9,7 @@
  *       for svg, but the mipmapping may not be necessary.
  */
 class CachedImage {
+  // eslint-disable-next-line no-unused-vars
   constructor(image) {
     this.NUM_ITERATIONS = 4;  // Number of items in the coordinates array
 
@@ -138,7 +139,7 @@ class CachedImage {
    *
    * @private
    */
-  _isImageOk(img) {
+  _isImageOk() {
     var img = this.image;
 
     // During the onload event, IE correctly identifies any images that
diff --git a/lib/network/Images.js b/lib/network/Images.js
index 7256f2a8f..e14f49809 100644
--- a/lib/network/Images.js
+++ b/lib/network/Images.js
@@ -50,7 +50,7 @@ class Images {
      * @param {string} brokenUrl    Url of an image to use if the url image is not found
      * @return {Image} img          The image object
      */     
-    load (url, brokenUrl, id) {
+    load (url, brokenUrl, id) {  // eslint-disable-line no-unused-vars
         //Try and get the image from the cache, if successful then return the cached image   
         var cachedImage = this.images[url]; 
         if (cachedImage) return cachedImage;
diff --git a/lib/network/Network.js b/lib/network/Network.js
index 1df33bdf8..d43f60e41 100644
--- a/lib/network/Network.js
+++ b/lib/network/Network.js
@@ -3,8 +3,6 @@ require('./shapes');
 
 let Emitter = require('emitter-component');
 let util = require('../util');
-let DataSet = require('../DataSet');
-let DataView = require('../DataView');
 let dotparser = require('./dotparser');
 let gephiParser = require('./gephiParser');
 let Activator = require('../shared/Activator');
diff --git a/lib/network/gephiParser.js b/lib/network/gephiParser.js
index 66da1eb64..dc1d2e136 100644
--- a/lib/network/gephiParser.js
+++ b/lib/network/gephiParser.js
@@ -40,9 +40,9 @@ function parseGephi(gephiJSON, optionsObj) {
     edges.push(edge);
   }
 
-  for (var i = 0; i < gNodes.length; i++) {
+  for (var j = 0; j < gNodes.length; j++) {
     var node = {};
-    var gNode = gNodes[i];
+    var gNode = gNodes[j];
     node['id'] = gNode.id;
     node['attributes'] = gNode.attributes;
     node['x'] = gNode.x;
diff --git a/lib/network/modules/Canvas.js b/lib/network/modules/Canvas.js
index 25ef90d0f..123737360 100644
--- a/lib/network/modules/Canvas.js
+++ b/lib/network/modules/Canvas.js
@@ -330,7 +330,7 @@ class Canvas {
     // set initialized so the get and set camera will work from now on.
     this.initialized = true;
     return emitEvent;
-  };
+  }
 
 
   getContext() {
diff --git a/lib/network/modules/Clustering.js b/lib/network/modules/Clustering.js
index 50c7abf1c..49f5a6329 100644
--- a/lib/network/modules/Clustering.js
+++ b/lib/network/modules/Clustering.js
@@ -902,7 +902,7 @@ class ClusterEngine {
     }
 
     return hubThreshold;
-  };
+  }
 
 
   /**
diff --git a/lib/network/modules/EdgesHandler.js b/lib/network/modules/EdgesHandler.js
index 818415251..8aaa665e8 100644
--- a/lib/network/modules/EdgesHandler.js
+++ b/lib/network/modules/EdgesHandler.js
@@ -4,7 +4,6 @@ var DataView = require('../../DataView');
 
 var Edge = require("./components/Edge").default;
 var Label = require("./components/shared/Label").default;
-var LayoutEngine = require("./LayoutEngine").default;  // For access to LayoutEngine.getStaticType()
 
 class EdgesHandler {
   constructor(body, images, groups) {
diff --git a/lib/network/modules/LayoutEngine.js b/lib/network/modules/LayoutEngine.js
index 769356907..22955da51 100644
--- a/lib/network/modules/LayoutEngine.js
+++ b/lib/network/modules/LayoutEngine.js
@@ -616,7 +616,6 @@ class LayoutEngine {
       // get the size of the largest hubs and check if the user has defined a level for a node.
       let node, nodeId;
       let definedLevel = false;
-      let definedPositions = true;
       let undefinedLevel = false;
       this.lastNodeOnLevel = {};
       this.hierarchical = new HierarchicalStatus();
@@ -624,9 +623,6 @@ class LayoutEngine {
       for (nodeId in this.body.nodes) {
         if (this.body.nodes.hasOwnProperty(nodeId)) {
           node = this.body.nodes[nodeId];
-          if (node.options.x === undefined && node.options.y === undefined) {
-            definedPositions = false;
-          }
           if (node.options.level !== undefined) {
             definedLevel = true;
             this.hierarchical.levels[nodeId] = node.options.level;
@@ -779,7 +775,7 @@ class LayoutEngine {
       }
 
       return [min, max, minSpace, maxSpace];
-    };
+    }
 
 
     // check what the maximum level is these nodes have in common.
@@ -832,8 +828,11 @@ class LayoutEngine {
 
           // check the largest distance between the branches
           let maxLevel = getCollisionLevel(node1, node2);
-          let [min1,max1, minSpace1, maxSpace1] = getBranchBoundary(branchNodes1, maxLevel);
-          let [min2,max2, minSpace2, maxSpace2] = getBranchBoundary(branchNodes2, maxLevel);
+          let branchNodeBoundary1 = getBranchBoundary(branchNodes1, maxLevel);
+          let branchNodeBoundary2 = getBranchBoundary(branchNodes2, maxLevel);
+          let max1 = branchNodeBoundary1[1];
+          let min2 = branchNodeBoundary2[0];
+          let minSpace2 = branchNodeBoundary2[2];
 
           //console.log(node1.id, getBranchBoundary(branchNodes1, maxLevel), node2.id,
           //            getBranchBoundary(branchNodes2, maxLevel), maxLevel);
@@ -935,7 +934,9 @@ class LayoutEngine {
             getBranchNodes(node, branchNodes);
             branches[node.id] = branchNodes;
           }
-          let [minBranch, maxBranch, minSpaceBranch, maxSpaceBranch] = getBranchBoundary(branches[node.id]);
+          let branchBoundary = getBranchBoundary(branches[node.id]);
+          let minSpaceBranch = branchBoundary[2];
+          let maxSpaceBranch = branchBoundary[3];
 
           let diff = guess - nodePosition;
 
@@ -1389,7 +1390,7 @@ class LayoutEngine {
     let minLevel = 100000;
 
     // TODO: this should come from options.
-    let customCallback = function(nodeA, nodeB, edge) {
+    let customCallback = function(nodeA, nodeB, edge) {  // eslint-disable-line no-unused-vars
 
     };
 
diff --git a/lib/network/modules/ManipulationSystem.js b/lib/network/modules/ManipulationSystem.js
index 2a821435a..b8d7200ed 100644
--- a/lib/network/modules/ManipulationSystem.js
+++ b/lib/network/modules/ManipulationSystem.js
@@ -696,10 +696,11 @@ class ManipulationSystem {
   }
 
   _createDeleteButton(locale) {
+    var deleteBtnClass;
     if (this.options.rtl) {
-      var deleteBtnClass = 'vis-button vis-delete-rtl';
+      deleteBtnClass = 'vis-button vis-delete-rtl';
     } else {
-      var deleteBtnClass = 'vis-button vis-delete';
+      deleteBtnClass = 'vis-button vis-delete';
     }
     let button = this._createButton('delete', deleteBtnClass, locale['del'] || this.options.locales['en']['del']);
     this.manipulationDiv.appendChild(button);
@@ -840,7 +841,7 @@ class ManipulationSystem {
    * @param event
    * @private
    */
-  _controlNodeDragStart(event) {
+  _controlNodeDragStart(event) {  // eslint-disable-line no-unused-vars
     let pointer = this.lastTouch;
     let pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
     let from = this.body.nodes[this.temporaryIds.nodes[0]];
diff --git a/lib/network/modules/View.js b/lib/network/modules/View.js
index 07029783e..e9491c672 100644
--- a/lib/network/modules/View.js
+++ b/lib/network/modules/View.js
@@ -265,7 +265,7 @@ class View {
       }
       this.body.emitter.emit("animationFinished");
     }
-  };
+  }
 
 
   getScale() {
diff --git a/lib/network/modules/components/NavigationHandler.js b/lib/network/modules/components/NavigationHandler.js
index 9d044fdc3..67dcbb900 100644
--- a/lib/network/modules/components/NavigationHandler.js
+++ b/lib/network/modules/components/NavigationHandler.js
@@ -1,4 +1,3 @@
-var util = require('../../../util');
 var Hammer = require('../../../module/hammer');
 var hammerUtil = require('../../../hammerUtil');
 var keycharm = require('keycharm');
diff --git a/lib/network/modules/components/Node.js b/lib/network/modules/components/Node.js
index 9683f4670..1b333a635 100644
--- a/lib/network/modules/components/Node.js
+++ b/lib/network/modules/components/Node.js
@@ -16,7 +16,6 @@ var Star = require('./nodes/shapes/Star').default;
 var Text = require('./nodes/shapes/Text').default;
 var Triangle = require('./nodes/shapes/Triangle').default;
 var TriangleDown = require('./nodes/shapes/TriangleDown').default;
-var Validator = require("../../../shared/Validator").default;
 var { printStyle } = require("../../../shared/Validator");
 
 
diff --git a/lib/network/modules/components/edges/util/EdgeBase.js b/lib/network/modules/components/edges/util/EdgeBase.js
index f8f608eac..0fa0dff80 100644
--- a/lib/network/modules/components/edges/util/EdgeBase.js
+++ b/lib/network/modules/components/edges/util/EdgeBase.js
@@ -62,7 +62,7 @@ class EdgeBase {
     }
   }
 
-  _drawDashedLine(ctx, values, viaNode, fromPoint, toPoint) {
+  _drawDashedLine(ctx, values, viaNode, fromPoint, toPoint) {  // eslint-disable-line no-unused-vars
     ctx.lineCap = 'round';
     let pattern = [5,5];
     if (Array.isArray(values.dashes) === true) {
@@ -129,7 +129,7 @@ class EdgeBase {
       to = this._findBorderPosition(this.to, ctx);
     }
     else {
-      let [x,y,radius] = this._getCircleData(ctx);
+      let [x,y] = this._getCircleData(ctx).slice(0, 2);
 
       from = this._findBorderPositionCircle(this.from, ctx, {x, y, low:0.25, high:0.6, direction:-1});
       to = this._findBorderPositionCircle(this.from, ctx, {x, y, low:0.6, high:0.8, direction:1});
@@ -255,7 +255,7 @@ class EdgeBase {
   }
 
 
-  getColor(ctx, values, selected, hover) {
+  getColor(ctx, values, selected, hover) {  // eslint-disable-line no-unused-vars
     if (values.inheritsColor !== false) {
       // when this is a loop edge, just use the 'from' method
       if ((values.inheritsColor === 'both') && (this.from.id !== this.to.id)) {
@@ -316,6 +316,7 @@ class EdgeBase {
   /**
    * Calculate the distance between a point (x3,y3) and a line segment from
    * (x1,y1) to (x2,y2).
+   * x3,y3 is the point.
    * http://stackoverflow.com/questions/849211/shortest-distancae-between-a-point-and-a-line-segment
    * @param {number} x1
    * @param {number} y1
@@ -323,9 +324,10 @@ class EdgeBase {
    * @param {number} y2
    * @param {number} x3
    * @param {number} y3
+   * @param via
    * @private
    */
-  getDistanceToEdge(x1, y1, x2, y2, x3, y3, via, values) { // x3,y3 is the point
+  getDistanceToEdge(x1, y1, x2, y2, x3, y3, via, values) {  // eslint-disable-line no-unused-vars
     let returnValue = 0;
     if (this.from != this.to) {
       returnValue = this._getDistanceToEdge(x1, y1, x2, y2, x3, y3, via)
diff --git a/lib/network/modules/components/nodes/shapes/Circle.js b/lib/network/modules/components/nodes/shapes/Circle.js
index 710c2e2e8..125292397 100644
--- a/lib/network/modules/components/nodes/shapes/Circle.js
+++ b/lib/network/modules/components/nodes/shapes/Circle.js
@@ -4,7 +4,7 @@ import CircleImageBase from '../util/CircleImageBase'
 
 class Circle extends CircleImageBase {
   constructor(options, body, labelModule) {
-    super(options, body, labelModule)
+    super(options, body, labelModule);
     this._setMargins(labelModule);
   }
 
@@ -40,7 +40,7 @@ class Circle extends CircleImageBase {
     this.boundingBox.bottom = y + this.options.size;
   }
 
-  distanceToBorder(ctx, angle) {
+  distanceToBorder(ctx, angle) {  // eslint-disable-line no-unused-vars
     this.resize(ctx);
     return this.width * 0.5;
   }
diff --git a/lib/network/modules/components/nodes/shapes/CircularImage.js b/lib/network/modules/components/nodes/shapes/CircularImage.js
index 6f743d5b5..4c0a70718 100644
--- a/lib/network/modules/components/nodes/shapes/CircularImage.js
+++ b/lib/network/modules/components/nodes/shapes/CircularImage.js
@@ -65,7 +65,7 @@ class CircularImage extends CircleImageBase {
   }
 
 
-  distanceToBorder(ctx, angle) {
+  distanceToBorder(ctx, angle) {  // eslint-disable-line no-unused-vars
     this.resize(ctx);
     return this.width * 0.5;
   }
diff --git a/lib/network/modules/components/nodes/shapes/Dot.js b/lib/network/modules/components/nodes/shapes/Dot.js
index 79746753c..73d3a3053 100644
--- a/lib/network/modules/components/nodes/shapes/Dot.js
+++ b/lib/network/modules/components/nodes/shapes/Dot.js
@@ -11,7 +11,7 @@ class Dot extends ShapeBase {
     this._drawShape(ctx, 'circle', 2, x, y, selected, hover, values);
   }
 
-  distanceToBorder(ctx, angle) {
+  distanceToBorder(ctx, angle) {  // eslint-disable-line no-unused-vars
     this.resize(ctx);
     return this.options.size;
   }
diff --git a/lib/network/modules/components/nodes/util/CircleImageBase.js b/lib/network/modules/components/nodes/util/CircleImageBase.js
index 2fcd81ba1..815223c44 100644
--- a/lib/network/modules/components/nodes/util/CircleImageBase.js
+++ b/lib/network/modules/components/nodes/util/CircleImageBase.js
@@ -1,6 +1,4 @@
 import NodeBase from './NodeBase';
-import CachedImage from '../../../../CachedImage';
-
 
 /**
  * NOTE: This is a bad base class
@@ -86,11 +84,11 @@ class CircleImageBase extends NodeBase {
 
       // Only calculate the proper ratio if both width and height not zero
       if (this.imageObj.width && this.imageObj.height) {
-      	if (this.imageObj.width > this.imageObj.height) {
-        	ratio_width = this.imageObj.width / this.imageObj.height;
+        if (this.imageObj.width > this.imageObj.height) {
+          ratio_width = this.imageObj.width / this.imageObj.height;
         }
         else {
-        	ratio_height = this.imageObj.height / this.imageObj.width;
+          ratio_height = this.imageObj.height / this.imageObj.width;
         }
       }
 
diff --git a/lib/network/modules/components/physics/HierarchicalSpringSolver.js b/lib/network/modules/components/physics/HierarchicalSpringSolver.js
index e9bde3e3f..ff26db12c 100644
--- a/lib/network/modules/components/physics/HierarchicalSpringSolver.js
+++ b/lib/network/modules/components/physics/HierarchicalSpringSolver.js
@@ -73,7 +73,7 @@ class HierarchicalSpringSolver {
     }
 
     // normalize spring forces
-    var springForce = 1;
+    springForce = 1;
     var springFx, springFy;
     for (let i = 0; i < nodeIndices.length; i++) {
       let nodeId = nodeIndices[i];
@@ -101,7 +101,6 @@ class HierarchicalSpringSolver {
       forces[nodeId].y -= correctionFy;
     }
   }
-
 }
 
-export default HierarchicalSpringSolver;
\ No newline at end of file
+export default HierarchicalSpringSolver;
diff --git a/lib/network/modules/components/shared/Label.js b/lib/network/modules/components/shared/Label.js
index da037b9df..0f0f7cf9b 100644
--- a/lib/network/modules/components/shared/Label.js
+++ b/lib/network/modules/components/shared/Label.js
@@ -663,7 +663,7 @@ class Label {
     };
     s.mod = function() {
       return (this.modStack.length === 0) ? 'normal' : this.modStack[0];
-    }
+    };
     s.modName = function() {
       if (this.modStack.length === 0)
         return 'normal';
@@ -678,8 +678,8 @@ class Label {
           return 'ital';
         }
       }
-    }
-    s.emitBlock = function(override = false) {
+    };
+    s.emitBlock = function(override=false) {  // eslint-disable-line no-unused-vars
       if (this.spacing) {
         this.add(" ");
         this.spacing = false;
@@ -688,7 +688,7 @@ class Label {
         blocks.push({ text: this.buffer, mod: this.modName() });
         this.buffer = "";
       }
-    }
+    };
     s.add = function(text) {
       if (text === " ") {
         s.spacing = true;
@@ -700,7 +700,7 @@ class Label {
       if (text != " ") {
         this.buffer += text;
       }
-    }
+    };
     while (s.position < text.length) {
       let ch = text.charAt(s.position);
       if (/[ \t]/.test(ch)) {
@@ -780,7 +780,7 @@ class Label {
     };
     s.mod = function() {
       return (this.modStack.length === 0) ? 'normal' : this.modStack[0];
-    }
+    };
     s.modName = function() {
       if (this.modStack.length === 0)
         return 'normal';
@@ -795,8 +795,8 @@ class Label {
           return 'ital';
         }
       }
-    }
-    s.emitBlock = function(override = false) {
+    };
+    s.emitBlock = function(override=false) {  // eslint-disable-line no-unused-vars
       if (this.spacing) {
         this.add(" ");
         this.spacing = false;
@@ -805,7 +805,7 @@ class Label {
         blocks.push({ text: this.buffer, mod: this.modName() });
         this.buffer = "";
       }
-    }
+    };
     s.add = function(text) {
       if (text === " ") {
         s.spacing = true;
@@ -817,7 +817,7 @@ class Label {
       if (text != " ") {
         this.buffer += text;
       }
-    }
+    };
     while (s.position < text.length) {
       let ch = text.charAt(s.position);
       if (/[ \t]/.test(ch)) {