Fix: Node 14 does not support Array.prototype.at

stephenhutchings · Apr 28, 2023 · 2ed13ce · 2ed13ce
1 parent 0df8fbd
commit 2ed13ce
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/src/lib/utils/interpolate.js b/src/lib/utils/interpolate.js
@@ -11,10 +11,10 @@ export default (values) => {
 
   return values.reduce((stack, next, i) => {
     if (isFinite(next) || i === values.length - 1) {
-      next = next ?? stack.at(-1)
+      next = next ?? stack.slice(-1)[0]
 
       if (count > 0) {
-        const prev = stack.at(-1) ?? next
+        const prev = stack.slice(-1)[0] ?? next
         const delta = 1 / (count + 1)
         const index = stack.length
 

diff --git a/src/templates/line.js b/src/templates/line.js
@@ -240,7 +240,7 @@ export default ({
   if (area) {
     // For lines with fewer points, continue along the baseline
     data.forEach((line, i) => {
-      const curve = line.at(-1)?.curve
+      const curve = line.slice(-1)[0]?.curve
       while (line.length < maxLength) {
         line.push({ x: map.x({}, i, line.length), y: 0, ignore: true, curve })
       }