diff --git a/package-lock.json b/package-lock.json
index 7328232..2cb530b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
    "name": "reorder.js",
-   "version": "2.2.5",
+   "version": "2.2.6",
    "lockfileVersion": 3,
    "requires": true,
    "packages": {
       "": {
          "name": "reorder.js",
-         "version": "2.2.5",
+         "version": "2.2.6",
          "license": "BSD-2-Clause",
          "dependencies": {
             "@sgratzl/science": "^2.0.0"
diff --git a/package.json b/package.json
index 38b617f..37bfd40 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
    "name": "reorder.js",
-   "version": "2.2.5",
+   "version": "2.2.6",
    "description": "Matrix reordering in JavaScript.",
    "keywords": [
       "es6",
diff --git a/src/bandwidth.js b/src/bandwidth.js
index 5408554..033b3f2 100644
--- a/src/bandwidth.js
+++ b/src/bandwidth.js
@@ -3,9 +3,9 @@ import { inverse_permutation } from './permutation';
 
 /**
  * Compute the bandwidth of a graph, given and order.
- * @param  {Graph} graph - the graph 
+ * @param  {Graph} graph - the graph
  * @param {list} order - a permutation
- * @returns {integer} the bandwidth 
+ * @returns {integer} the bandwidth
  */
 export function bandwidth(graph, order) {
   if (!order) {
@@ -26,10 +26,10 @@ export function bandwidth(graph, order) {
 
 /**
  * Compute the bandwidth of an adjacency matrix,
- * i.e. the maximum distace between two endpoints 
+ * i.e. the maximum distace between two endpoints
  * over all edges.
  * @param  {Matrix} matrix - the matrix
- * @returns {integer} the bandwidth 
+ * @returns {integer} the bandwidth
  */
 export function bandwidth_matrix(matrix) {
   let max = 0;
diff --git a/src/distance.js b/src/distance.js
index 01d01da..4ccf435 100644
--- a/src/distance.js
+++ b/src/distance.js
@@ -3,9 +3,9 @@ function isNum(a, b) {
 }
 export const distance = {};
 
-distance.euclidean = function(a, b) {
+distance.euclidean = function (a, b) {
   let s = 0;
-  for (let i = a.length-1; i >= 0; i--) {
+  for (let i = a.length - 1; i >= 0; i--) {
     if (isNum(a[i], b[i])) {
       const x = a[i] - b[i];
       s += x * x;
@@ -14,9 +14,9 @@ distance.euclidean = function(a, b) {
   return Math.sqrt(s);
 };
 
-distance.manhattan = function(a, b) {
+distance.manhattan = function (a, b) {
   let s = 0;
-  for (let i = a.length-1; i >= 0; i--) {
+  for (let i = a.length - 1; i >= 0; i--) {
     if (isNum(a[i], b[i])) {
       s += Math.abs(a[i] - b[i]);
     }
@@ -24,10 +24,10 @@ distance.manhattan = function(a, b) {
   return s;
 };
 
-distance.minkowski = function(p) {
+distance.minkowski = function (p) {
   return (a, b) => {
     let s = 0;
-    for (let i = a.length-1; i >= 0; i--) {
+    for (let i = a.length - 1; i >= 0; i--) {
       if (isNum(a[i], b[i])) {
         s += Math.pow(Math.abs(a[i] - b[i]), p);
       }
@@ -36,10 +36,9 @@ distance.minkowski = function(p) {
   };
 };
 
-
-distance.chebyshev = function(a, b) {
+distance.chebyshev = function (a, b) {
   let max = 0;
-  for (let i = a.length-1; i >= 0; i--) {
+  for (let i = a.length - 1; i >= 0; i--) {
     if (isNum(a[i], b[i])) {
       const x = Math.abs(a[i] - b[i]);
       if (x > max) {
@@ -50,9 +49,9 @@ distance.chebyshev = function(a, b) {
   return max;
 };
 
-distance.hamming = function(a, b) {
+distance.hamming = function (a, b) {
   let d = 0;
-  for (let i = a.length-1; i >= 0; i--) {
+  for (let i = a.length - 1; i >= 0; i--) {
     if (isNum(a[i], b[i])) {
       if (a[i] !== b[i]) {
         d++;
@@ -62,10 +61,10 @@ distance.hamming = function(a, b) {
   return d;
 };
 
-distance.jaccard = function(a, b) {
+distance.jaccard = function (a, b) {
   let n = 0;
   let s = 0;
-  for (let i = a.length-1; i >= 0; i--) {
+  for (let i = a.length - 1; i >= 0; i--) {
     if (isNum(a[i], b[i])) {
       if (a[i] === b[i]) {
         s++;
@@ -79,10 +78,10 @@ distance.jaccard = function(a, b) {
   return s / n;
 };
 
-distance.braycurtis = function(a, b) {
+distance.braycurtis = function (a, b) {
   let s0 = 0;
   let s1 = 0;
-  for (let i = a.length-1; i >= 0; i--) {
+  for (let i = a.length - 1; i >= 0; i--) {
     const ai = a[i];
     const bi = b[i];
     if (isNum(ai, bi)) {
@@ -101,7 +100,7 @@ distance.braycurtis = function(a, b) {
 //
 // N. van Beusekom, W. Meulemans, B. Speckmann, Simultaneous Orderings for Graph Collections
 // IEEE Transactions on Visualization and Computer Graphics, vol. 28, no. 1, pp. 1-10, Jan. 2022
-distance.morans = function(matrix) {
+distance.morans = function (matrix) {
   let m = 0;
   const n = matrix.length * matrix[0].length;
   for (let i = 0; i < matrix.length; i++) {
@@ -119,4 +118,3 @@ distance.morans = function(matrix) {
     return -1 * result;
   };
 };
-
diff --git a/src/nn_2opt.js b/src/nn_2opt.js
index 97b56e1..ef8e438 100644
--- a/src/nn_2opt.js
+++ b/src/nn_2opt.js
@@ -30,7 +30,7 @@ export function nn_2opt() {
     }
     let lowest_dist_all = Number.MAX_VALUE;
     let best_order_all = [];
-    
+
     // Try each row as the initial permutation for NN-2OPT
     for (let s = 0; s < distanceMatrix.length; s++) {
       let order = [];
@@ -61,9 +61,13 @@ export function nn_2opt() {
         for (let i = 0; i < order.length; i++) {
           for (let j = i + 2; j < order.length - 1; j++) {
             // edge 1: (i,i+1) edge2: (j,j+1)
-            let currentd = distanceMatrix[order[i]][order[i + 1]] + distanceMatrix[order[j]][order[j + 1]];
-            let candidated = distanceMatrix[order[i]][order[j]] + distanceMatrix[order[i + 1]][order[j + 1]];
-            if (candidated < currentd) {               
+            let currentd =
+              distanceMatrix[order[i]][order[i + 1]] +
+              distanceMatrix[order[j]][order[j + 1]];
+            let candidated =
+              distanceMatrix[order[i]][order[j]] +
+              distanceMatrix[order[i + 1]][order[j + 1]];
+            if (candidated < currentd) {
               let check = [];
               for (let k = 0; k < order.length; k++) {
                 check[k] = order[k];
@@ -84,9 +88,9 @@ export function nn_2opt() {
         }
       }
       if (lowest_dist_2opt < lowest_dist_all) {
-          lowest_dist_all = lowest_dist_2opt;
-          best_order_all = best_order_2opt;
-        }
+        lowest_dist_all = lowest_dist_2opt;
+        best_order_all = best_order_2opt;
+      }
     }
     return best_order_all;
   }
diff --git a/test/distance-test.js b/test/distance-test.js
index 65f17d1..f648052 100644
--- a/test/distance-test.js
+++ b/test/distance-test.js
@@ -11,14 +11,14 @@ suite.addBatch({
       const a = [3, 0];
       const b = [0, 4];
       assert.equal(reorder.distance.euclidean(a, b), 5);
-    }
+    },
   },
   manhattan: {
     simple() {
       const a = [3, 0];
       const b = [0, 4];
       assert.equal(reorder.distance.manhattan(a, b), 7);
-    } 
+    },
   },
   minkowski: {
     simple() {
@@ -26,28 +26,28 @@ suite.addBatch({
       const b = [0, 4];
       assert.equal(reorder.distance.minkowski(1)(a, b), 7);
       assert.equal(reorder.distance.minkowski(2)(a, b), 5);
-    }
+    },
   },
   chebyshev: {
     simple() {
       const a = [3, 0];
       const b = [0, 4];
       assert.equal(reorder.distance.chebyshev(a, b), 4);
-    }
+    },
   },
   hamming: {
     simple() {
       const a = [3, 0, 2];
       const b = [0, 4, 2];
-      assert.equal(reorder.distance.jaccard(a, b), 1/3);
-    }
+      assert.equal(reorder.distance.jaccard(a, b), 1 / 3);
+    },
   },
   braycurtis: {
     simple() {
       const a = [1, 0, 1];
       const b = [0, 1, 0];
       assert.equal(reorder.distance.braycurtis(a, b), 1);
-    }
+    },
   },
   morans: {
     simple() {
@@ -59,8 +59,8 @@ suite.addBatch({
       ];
       const dist = reorder.distance.morans(mat);
       // TODO
-    }
-  }
+    },
+  },
 });
 
 suite.export(module);