diff --git a/src/mono/browser/runtime/.eslintrc.cjs b/src/mono/browser/runtime/.eslintrc.cjs
index 0cae796f4016a..0885027b96303 100644
--- a/src/mono/browser/runtime/.eslintrc.cjs
+++ b/src/mono/browser/runtime/.eslintrc.cjs
@@ -53,12 +53,14 @@ module.exports = {
         ],
         "brace-style": ["error"],
         "eol-last": ["error"],
-        "space-before-blocks": ["error"],
+        "space-before-blocks": ["error", { "functions": "always", "keywords": "always", "classes": "always" }],
         "semi-spacing": ["error", { "before": false, "after": true }],
+        "keyword-spacing": ["error", { "before": true, "after": true, "overrides": { "this": { "before": false } } }],
         "no-trailing-spaces": ["error"],
         "object-curly-spacing": ["error", "always"],
         "array-bracket-spacing": ["error"],
         "space-infix-ops": ["error"],
+        "func-call-spacing": ["error", "never"],
         "space-before-function-paren": ["error", "always"],
     }
 };
diff --git a/src/mono/browser/runtime/hybrid-globalization/calendar.ts b/src/mono/browser/runtime/hybrid-globalization/calendar.ts
index 4356f3391a16a..d3944f514ce85 100644
--- a/src/mono/browser/runtime/hybrid-globalization/calendar.ts
+++ b/src/mono/browser/runtime/hybrid-globalization/calendar.ts
@@ -231,7 +231,7 @@ function getDayNames (locale: string | undefined) : { long: string[], abbreviate
     const dayNames = [];
     const dayNamesAbb = [];
     const dayNamesSS = [];
-    for(let i = 0; i < 7; i++) {
+    for (let i = 0; i < 7; i++) {
         dayNames[i] = weekDay.toLocaleDateString(locale, { weekday: "long" });
         dayNamesAbb[i] = weekDay.toLocaleDateString(locale, { weekday: "short" });
         dayNamesSS[i] = weekDay.toLocaleDateString(locale, { weekday: "narrow" });
@@ -251,7 +251,7 @@ function getMonthNames (locale: string | undefined) : { long: string[], abbrevia
     const monthsGen: string[] = [];
     const monthsAbbGen: string[] = [];
     let isChineeseStyle, isShortFormBroken;
-    for(let i = firstMonthShift; i < 12 + firstMonthShift; i++) {
+    for (let i = firstMonthShift; i < 12 + firstMonthShift; i++) {
         const monthCnt = i % 12;
         date.setMonth(monthCnt);