manually fix eslint violations

src/app.ts

@@ -9,24 +9,22 @@ async function ready(): Promise<void> {
       });
 }
 
-(async function () {
-  await ready();
+await ready();
 
-  const startTime = performance.now();
-  const errors = await scan(document.body);
-  const endTime = performance.now();
+const startTime = performance.now();
+const errors = await scan(document.body);
+const endTime = performance.now();
 
-  for (const accessbilityError of errors) {
-    accessbilityError.element.setAttribute("style", "border: 5px solid red;");
-    console.log(
-      accessbilityError.text,
-      accessbilityError.element,
-      accessbilityError.url,
-    );
-  }
+for (const accessbilityError of errors) {
+  accessbilityError.element.setAttribute("style", "border: 5px solid red;");
   console.log(
-    `Took ${(endTime - startTime).toPrecision(
-      2,
-    )}ms to execute accessbility scans`,
+    accessbilityError.text,
+    accessbilityError.element,
+    accessbilityError.url,
   );
-})();
+}
+console.log(
+  `Took ${(endTime - startTime).toPrecision(
+    2,
+  )}ms to execute accessbility scans`,
+);

src/rules/aria-valid-attr-value.ts

@@ -65,9 +65,12 @@ function valid(element: Element, attribute: string, info: Info) {
       return false;
     }
     return true;
-  } else if (info.type === "decimal" && !isNaN(Number.parseFloat(value))) {
+  } else if (
+    info.type === "decimal" &&
+    !Number.isNaN(Number.parseFloat(value))
+  ) {
     return true;
-  } else if (info.type === "int" && !isNaN(Number.parseInt(value))) {
+  } else if (info.type === "int" && !Number.isNaN(Number.parseInt(value))) {
     if (info.minValue != undefined) {
       return info.minValue <= Number.parseInt(value);
     }

src/scanner.ts

@@ -50,9 +50,11 @@ export async function requestIdleScan(
   return new Promise((resolve) => {
     requestIdleCallback(async function executeScan(deadline: IdleDeadline) {
       while (
+        // eslint-disable-next-line tscompat/tscompat
         (deadline.timeRemaining() > 0 || deadline.didTimeout) &&
         rules.length > 0
       ) {
+        // eslint-disable-next-line tscompat/tscompat
         logger.log(deadline.timeRemaining(), deadline.didTimeout);
         const rule = rules.shift()!;
         logger.log(`Executing ${rule.name}`);

src/utils.ts

@@ -25,8 +25,7 @@ export function labelReadableText(label: HTMLElement): boolean {
   if (!label?.textContent?.trim()) return false;
 
   // NOTE: This is expensive and we should look into ways to not do this any more.
-  const hasDisplayNone =
-    window.getComputedStyle(label, null).display === "none";
+  const hasDisplayNone = window.getComputedStyle(label).display === "none";
   if (hasDisplayNone) return false;
 
   const copiedNode = label.cloneNode(true) as Element;
@@ -42,15 +41,19 @@ type Container = HTMLElement | Element | Document | ShadowRoot;
 export function querySelector<T extends Element>(
   selector: string,
   container: Container,
-  options = { depth: Number.POSITIVE_INFINITY },
-): T | null {
-  const els = querySelectorAll<T>(selector, container, options);
+  options,
+): T | undefined {
+  const els = querySelectorAll<T>(
+    selector,
+    container,
+    options || { depth: Number.POSITIVE_INFINITY },
+  );
 
   if (Array.isArray(els) && els.length > 0) {
     return els[0];
   }
 
-  return null;
+  return undefined;
 }
 
 /**
@@ -68,9 +71,12 @@ export function querySelector<T extends Element>(
 export function querySelectorAll<T extends Element>(
   selector: string,
   container: Container,
-  options = { depth: Number.POSITIVE_INFINITY },
+  options,
 ): T[] {
-  const elements = getAllElementsAndShadowRoots(container, options);
+  const elements = getAllElementsAndShadowRoots(
+    container,
+    options || { depth: Number.POSITIVE_INFINITY },
+  );
 
   const queriedElements = elements.flatMap((element) => [
     ...element.querySelectorAll<T>(selector),
@@ -80,22 +86,24 @@ export function querySelectorAll<T extends Element>(
 
 // This could probably get really slow and memory intensive in large DOMs,
 // maybe an infinite generator in the future?
-export function getAllElementsAndShadowRoots(
-  container: Container,
-  options = { depth: Number.POSITIVE_INFINITY },
-) {
+export function getAllElementsAndShadowRoots(container: Container, options) {
   const selector = "*";
-  return recurse(container, selector, options);
+  return recurse(
+    container,
+    selector,
+    options || { depth: Number.POSITIVE_INFINITY },
+  );
 }
 
 function recurse(
   container: Container,
   selector: string,
-  options = { depth: Number.POSITIVE_INFINITY },
+  options,
   elementsToProcess: Array<Element | ShadowRoot | Document> = [],
   elements: Array<Element | ShadowRoot | Document> = [],
   currentDepth = 1,
 ) {
+  options = options || { depth: Number.POSITIVE_INFINITY };
   // if "document" is passed in, it will also pick up "<html>" causing the query to run twice.
   if (container instanceof Document) {
     container = container.documentElement;