--- a/web/src/parse.js
+++ b/web/src/parse.js
@@ -1,4 +1,4 @@
 // Parse string values with a caller-supplied converter for the non-integer part.
 export function parseAll(values, Number) {
-  return values.map((v) => parseInt(v, 10) + Number(v));
+  return values.map((v) => Number.parseInt(v, 10) + Number(v));
 }