diff --git a/rollup.config.js b/rollup.config.mjs
similarity index 93%
rename from rollup.config.js
rename to rollup.config.mjs
index 26825ea24..b69b72502 100644
--- a/rollup.config.js
+++ b/rollup.config.mjs
@@ -1,5 +1,3 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
-/* eslint-disable no-undef */
 import commonjs from "@rollup/plugin-commonjs";
 import resolve from "@rollup/plugin-node-resolve";
 import typescript from "@rollup/plugin-typescript";
diff --git a/src/components/text-elements/Legend/Legend.tsx b/src/components/text-elements/Legend/Legend.tsx
index 6ace484df..94622381d 100644
--- a/src/components/text-elements/Legend/Legend.tsx
+++ b/src/components/text-elements/Legend/Legend.tsx
@@ -288,7 +288,7 @@ const Legend = React.forwardRef<HTMLOListElement, LegendProps>((props, ref) => {
                 setIsKeyDowned(null);
                 scrollToTest("left");
               }}
-              disabled={!hasScroll?.left ?? true}
+              disabled={!hasScroll?.left}
             />
             <ScrollButton
               icon={ChevronRightFill}
@@ -296,7 +296,7 @@ const Legend = React.forwardRef<HTMLOListElement, LegendProps>((props, ref) => {
                 setIsKeyDowned(null);
                 scrollToTest("right");
               }}
-              disabled={!hasScroll?.right ?? true}
+              disabled={!hasScroll?.right}
             />
           </div>
         </>
diff --git a/src/stories/chart-elements/AreaChart.stories.tsx b/src/stories/chart-elements/AreaChart.stories.tsx
index 19268ecee..5adc080ac 100644
--- a/src/stories/chart-elements/AreaChart.stories.tsx
+++ b/src/stories/chart-elements/AreaChart.stories.tsx
@@ -271,7 +271,7 @@ export const CustomTooltipPreviousDay: Story = {
       const previousIndex = data.findIndex((e) => e[customTooltipIndex] === label);
       const previousValues: any = previousIndex > 0 ? data[previousIndex - 1] : {};
       const prev = previousValues ? previousValues[dataKey] : undefined;
-      const percentage = ((value - prev) / prev) * 100 ?? undefined;
+      const percentage = ((value - prev) / prev) * 100;
       const color = getBadgeColor(percentage);
 
       return (
@@ -315,7 +315,7 @@ export const CustomTooltipComplex: Story = {
       const previousIndex = data.findIndex((e) => e[customTooltipIndex] === label);
       const previousValues: any = previousIndex > 0 ? data[previousIndex - 1] : {};
       const prev = previousValues ? previousValues[dataKey] : undefined;
-      const percentage = ((value - prev) / prev) * 100 ?? undefined;
+      const percentage = ((value - prev) / prev) * 100;
       const badgeColor = getBadgeColor(percentage);
 
       return (
diff --git a/src/stories/chart-elements/BarChart.stories.tsx b/src/stories/chart-elements/BarChart.stories.tsx
index f42a4f89c..af3c7958c 100644
--- a/src/stories/chart-elements/BarChart.stories.tsx
+++ b/src/stories/chart-elements/BarChart.stories.tsx
@@ -287,7 +287,7 @@ export const CustomTooltipPreviousDay: Story = {
       const previousIndex = data.findIndex((e) => e[customTooltipIndex] === label);
       const previousValues: any = previousIndex > 0 ? data[previousIndex - 1] : {};
       const prev = previousValues ? previousValues[dataKey] : undefined;
-      const percentage = ((value - prev) / prev) * 100 ?? undefined;
+      const percentage = ((value - prev) / prev) * 100;
       const color = getBadgeColor(percentage);
 
       return (
@@ -331,7 +331,7 @@ export const CustomTooltipComplex: Story = {
       const previousIndex = data.findIndex((e) => e[customTooltipIndex] === label);
       const previousValues: any = previousIndex > 0 ? data[previousIndex - 1] : {};
       const prev = previousValues ? previousValues[dataKey] : undefined;
-      const percentage = ((value - prev) / prev) * 100 ?? undefined;
+      const percentage = ((value - prev) / prev) * 100;
       const badgeColor = getBadgeColor(percentage);
 
       return (
diff --git a/src/stories/chart-elements/LineChart.stories.tsx b/src/stories/chart-elements/LineChart.stories.tsx
index 1318b81c4..bd8c423c8 100644
--- a/src/stories/chart-elements/LineChart.stories.tsx
+++ b/src/stories/chart-elements/LineChart.stories.tsx
@@ -231,7 +231,7 @@ export const CustomTooltipPreviousDay: Story = {
       const previousIndex = data.findIndex((e) => e[customTooltipIndex] === label);
       const previousValues: any = previousIndex > 0 ? data[previousIndex - 1] : {};
       const prev = previousValues ? previousValues[dataKey] : undefined;
-      const percentage = ((value - prev) / prev) * 100 ?? undefined;
+      const percentage = ((value - prev) / prev) * 100;
       const color = getBadgeColor(percentage);
 
       return (
@@ -275,7 +275,7 @@ export const CustomTooltipComplex: Story = {
       const previousIndex = data.findIndex((e) => e[customTooltipIndex] === label);
       const previousValues: any = previousIndex > 0 ? data[previousIndex - 1] : {};
       const prev = previousValues ? previousValues[dataKey] : undefined;
-      const percentage = ((value - prev) / prev) * 100 ?? undefined;
+      const percentage = ((value - prev) / prev) * 100;
       const badgeColor = getBadgeColor(percentage);
 
       return (