diff --git a/src/interpolation/helpers.js b/src/interpolation/helpers.js
index 2bf620c..4d97a4e 100644
--- a/src/interpolation/helpers.js
+++ b/src/interpolation/helpers.js
@@ -24,10 +24,10 @@ export function takeSampleFrom(sourceList, amount) {
   }
 
   for (let i = 0; i < amount; ++i) {
-    let rand = sourceList[Math.floor((Math.random() * max))];
+    let rand = sourceList[Math.floor(Math.random() * max)];
     // Re-random until suitable value is found.
     while (randElements.includes(rand)) {
-      rand = sourceList[Math.floor((Math.random() * max))];
+      rand = sourceList[Math.floor(Math.random() * max)];
     }
     randElements.push(rand);
   }
diff --git a/src/neighbourSampling.js b/src/neighbourSampling.js
index 9914cc2..eb8de26 100644
--- a/src/neighbourSampling.js
+++ b/src/neighbourSampling.js
@@ -126,10 +126,10 @@ export default function () {
         break;
       }
 
-      let rand = Math.floor((Math.random() * max));
+      let rand = Math.floor(Math.random() * max);
       // Re-random until suitable value is found.
       while (randElements.includes(rand) || exclude.includes(rand)) {
-        rand = Math.floor((Math.random() * max));
+        rand = Math.floor(Math.random() * max);
       }
       randElements.push(rand);
     }
diff --git a/src/t-sne.js b/src/t-sne.js
index 996bf18..3cbade4 100644
--- a/src/t-sne.js
+++ b/src/t-sne.js
@@ -52,7 +52,7 @@ export default function() {
     let u = 2 * Math.random() - 1;
     let v = 2 * Math.random() - 1;
     let r = u * u + v * v;
-    if (r == 0 || r > 1) return gaussRandom();
+    if (r == 0 || r > 1) {return gaussRandom();}
     return u * Math.sqrt(-2 * Math.log(r) / r);
   }
 
@@ -74,7 +74,7 @@ export default function() {
    * @return {Float64Array}   - array of zeros with length n.
    */
   function zeros(n) {
-    if (typeof(n) === 'undefined' || isNaN(n)) {
+    if (typeof n === 'undefined' || isNaN(n)) {
       return [];
     }
     return new Float64Array(n); // typed arrays are faster