Index: node_modules/es-toolkit/dist/array/intersectionBy.js
===================================================================
--- node_modules/es-toolkit/dist/array/intersectionBy.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/es-toolkit/dist/array/intersectionBy.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,19 @@
+'use strict';
+
+Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+
+function intersectionBy(firstArr, secondArr, mapper) {
+    const result = [];
+    const mappedSecondSet = new Set(secondArr.map(mapper));
+    for (let i = 0; i < firstArr.length; i++) {
+        const item = firstArr[i];
+        const mappedItem = mapper(item);
+        if (mappedSecondSet.has(mappedItem)) {
+            result.push(item);
+            mappedSecondSet.delete(mappedItem);
+        }
+    }
+    return result;
+}
+
+exports.intersectionBy = intersectionBy;