refactor: remove unnecessary assertion (#357)

Author: noritaka1166

src/components/AnimatedBackground.tsx

@@ -208,17 +208,17 @@ export function AnimatedBackground() {
 
       for (let a = 0; a < particles.length; a++) {
         for (let b = a; b < particles.length; b++) {
-          const dx = particles[a]!.x - particles[b]!.x
-          const dy = particles[a]!.y - particles[b]!.y
+          const dx = particles[a].x - particles[b].x
+          const dy = particles[a].y - particles[b].y
           const distance = Math.sqrt(dx * dx + dy * dy)
 
           if (distance < maxDistance) {
             const opacity = (1 - distance / maxDistance) * 0.5
             ctx.strokeStyle = `rgba(100, 150, 255, ${opacity})`
             ctx.lineWidth = 0.5
             ctx.beginPath()
-            ctx.moveTo(particles[a]!.x, particles[a]!.y)
-            ctx.lineTo(particles[b]!.x, particles[b]!.y)
+            ctx.moveTo(particles[a].x, particles[a].y)
+            ctx.lineTo(particles[b].x, particles[b].y)
             ctx.stroke()
           }
         }
@@ -253,16 +253,16 @@ export function AnimatedBackground() {
       if (!canvas) throw new Error("Canvas is null (not initialized?)")
 
       // Calculate direction vector
-      const dx = targetX - gradientPoints[0]!.x
-      const dy = targetY - gradientPoints[0]!.y
+      const dx = targetX - gradientPoints[0].x
+      const dy = targetY - gradientPoints[0].y
 
       // Smooth movement using linear interpolation
-      gradientPoints[0]!.x += dx * moveSpeed
-      gradientPoints[0]!.y += dy * moveSpeed
+      gradientPoints[0].x += dx * moveSpeed
+      gradientPoints[0].y += dy * moveSpeed
 
       // Adjust radius based on distance to target
       const distanceToTarget = Math.sqrt(dx * dx + dy * dy)
-      gradientPoints[0]!.radius = Math.max(
+      gradientPoints[0].radius = Math.max(
         canvas.width * 0.2,
         Math.min(canvas.width * 0.4, canvas.width * 0.3 + distanceToTarget * 0.1),
       )

src/theme/Navbar/MobileSidebar/Layout/index.tsx

@@ -8,7 +8,7 @@ import type {Props} from '@theme/Navbar/MobileSidebar/Layout';
 //  See https://github.com/facebook/react/issues/17157
 //  See https://github.com/radix-ui/themes/pull/509
 function inertProps(inert: boolean) {
-  const isBeforeReact19 = parseInt(version!.split('.')[0]!, 10) < 19;
+  const isBeforeReact19 = parseInt(version.split('.')[0], 10) < 19;
   if (isBeforeReact19) {
     return {inert: inert ? '' : undefined};
   }

src/theme/SearchBar/index.tsx

@@ -43,11 +43,11 @@ import styles from '@easyops-cn/docusaurus-search-local/dist/client/client/theme
 
 async function fetchAutoCompleteJS() {
   const autoCompleteModule = await import('@easyops-cn/autocomplete.js');
-  const autoComplete = autoCompleteModule.default as any;
-  if ((autoComplete as any).noConflict) {
-    (autoComplete as any).noConflict();
-  } else if ((autoCompleteModule as any).noConflict) {
-    (autoCompleteModule as any).noConflict();
+  const autoComplete = autoCompleteModule.default;
+  if (autoComplete.noConflict) {
+    autoComplete.noConflict();
+  } else if (autoCompleteModule.noConflict) {
+    autoCompleteModule.noConflict();
   }
   return autoComplete;
 }
@@ -263,7 +263,7 @@ export default function SearchBar(): JSX.Element {
 
     if (focusAfterIndexLoaded.current) {
       const input = searchBarRef.current!;
-      if ((input as any).value) {
+      if (input.value) {
         search.current?.autocomplete.open();
       }
       input.focus();
@@ -311,7 +311,7 @@ export default function SearchBar(): JSX.Element {
     : false;
 
   useEffect(() => {
-    const searchBar = searchBarRef.current as any;
+    const searchBar = searchBarRef.current;
     const domValue = searchBar?.value;
     if (domValue) {
       setInputValue(domValue);