diff --git a/src/core/annotation.js b/src/core/annotation.js
index 6948ddf2f..e297a4c61 100644
--- a/src/core/annotation.js
+++ b/src/core/annotation.js
@@ -4792,19 +4792,19 @@ class InkAnnotation extends MarkupAnnotation {
     if (!Array.isArray(rawInkLists)) {
       return;
     }
-    for (let i = 0, ii = rawInkLists.length; i < ii; ++i) {
+    for (const rawInkList of rawInkLists) {
       // The raw ink lists array contains arrays of numbers representing
       // the alternating horizontal and vertical coordinates, respectively,
       // of each vertex. Convert this to an array of objects with x and y
       // coordinates.
-      if (!Array.isArray(rawInkLists[i])) {
+      if (!Array.isArray(rawInkList)) {
         continue;
       }
-      const inkList = new Float32Array(rawInkLists[i].length);
+      const inkList = new Float32Array(rawInkList.length);
       this.data.inkLists.push(inkList);
-      for (let j = 0, jj = rawInkLists[i].length; j < jj; j += 2) {
-        const x = xref.fetchIfRef(rawInkLists[i][j]),
-          y = xref.fetchIfRef(rawInkLists[i][j + 1]);
+      for (let j = 0, jj = rawInkList.length; j < jj; j += 2) {
+        const x = xref.fetchIfRef(rawInkList[j]),
+          y = xref.fetchIfRef(rawInkList[j + 1]);
         if (typeof x === "number" && typeof y === "number") {
           inkList[j] = x;
           inkList[j + 1] = y;
diff --git a/src/core/editor/pdf_images.js b/src/core/editor/pdf_images.js
index f98ed183f..7ff05b9ca 100644
--- a/src/core/editor/pdf_images.js
+++ b/src/core/editor/pdf_images.js
@@ -200,8 +200,7 @@ async function createImage(bitmap, xref, { closeBitmap = false } = {}) {
   const colorCounter = new Set();
   let hasAlpha = false;
   let useFlate = true;
-  for (let i = 0, ii = buf32.length; i < ii; i++) {
-    const v = buf32[i];
+  for (const v of buf32) {
     if ((isLE ? v >>> 24 : v & 0xff) !== 0xff) {
       hasAlpha = true;
       break;
diff --git a/src/core/evaluator.js b/src/core/evaluator.js
index 97736b6c0..e0cb73d01 100644
--- a/src/core/evaluator.js
+++ b/src/core/evaluator.js
@@ -3273,9 +3273,7 @@ class PartialEvaluator {
 
             const spaceFactor =
               ((textState.font.vertical ? 1 : -1) * textState.fontSize) / 1000;
-            const elements = args[0];
-            for (let i = 0, ii = elements.length; i < ii; i++) {
-              const item = elements[i];
+            for (const item of args[0]) {
               if (typeof item === "string") {
                 showSpacedTextBuffer.push(item);
               } else if (typeof item === "number" && item !== 0) {
diff --git a/src/core/fonts.js b/src/core/fonts.js
index 9ec554b7b..6f8ce007e 100644
--- a/src/core/fonts.js
+++ b/src/core/fonts.js
@@ -1525,9 +1525,9 @@ class Font {
         }
         const [nameTable] = readNameTable(potentialTables.name);
 
-        for (let j = 0, jj = nameTable.length; j < jj; j++) {
-          for (let k = 0, kk = nameTable[j].length; k < kk; k++) {
-            const nameEntry = nameTable[j][k]?.replaceAll(/\s/g, "");
+        for (const nameArr of nameTable) {
+          for (const entry of nameArr) {
+            const nameEntry = entry?.replaceAll(/\s/g, "");
             if (!nameEntry) {
               continue;
             }
diff --git a/src/display/annotation_layer.js b/src/display/annotation_layer.js
index bb04e2d2d..490262ebd 100644
--- a/src/display/annotation_layer.js
+++ b/src/display/annotation_layer.js
@@ -3517,10 +3517,10 @@ class InkAnnotationElement extends AnnotationElement {
     g.setAttribute("fill", "transparent");
     g.setAttribute("transform", transform);
 
-    for (let i = 0, ii = inkLists.length; i < ii; i++) {
+    for (const inkList of inkLists) {
       const polyline = this.svgFactory.createElement(this.svgElementName);
       this.#polylines.push(polyline);
-      polyline.setAttribute("points", inkLists[i].join(","));
+      polyline.setAttribute("points", inkList.join(","));
       g.append(polyline);
     }
 
diff --git a/web/debugger.mjs b/web/debugger.mjs
index 5f6fd2b2b..273b35b43 100644
--- a/web/debugger.mjs
+++ b/web/debugger.mjs
@@ -517,8 +517,7 @@ class Stepper {
       return 0;
     });
 
-    for (let i = 0; i < operatorsGroupsByZindex.length; i++) {
-      const group = operatorsGroupsByZindex[i];
+    for (const group of operatorsGroupsByZindex) {
       if (group.minX !== null) {
         const el = this.#c("div");
         el.style.left = `${group.minX * 100}%`;