diff --git a/js/src/common/utils/extract.js b/js/src/common/utils/extract.js
deleted file mode 100644
index a6b748210..000000000
--- a/js/src/common/utils/extract.js
+++ /dev/null
@@ -1,15 +0,0 @@
-/**
- * The `extract` utility deletes a property from an object and returns its
- * value.
- *
- * @param {Object} object The object that owns the property
- * @param {String} property The name of the property to extract
- * @return {*} The value of the property
- */
-export default function extract(object, property) {
-  const value = object[property];
-
-  delete object[property];
-
-  return value;
-}
diff --git a/js/src/common/utils/extract.ts b/js/src/common/utils/extract.ts
new file mode 100644
index 000000000..3e05da257
--- /dev/null
+++ b/js/src/common/utils/extract.ts
@@ -0,0 +1,15 @@
+/**
+ * The `extract` utility deletes a property from an object and returns its
+ * value.
+ *
+ * @param object The object that owns the property
+ * @param property The name of the property to extract
+ * @return The value of the property
+ */
+export default function extract<T, K extends keyof T>(object: T, property: K): T[K] {
+  const value = object[property];
+
+  delete object[property];
+
+  return value;
+}