From ab7b0dd1aabea5895db9dc904d6f41a79d4836f7 Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@iki.fi>
Date: Thu, 7 Aug 2025 14:25:59 +0300
Subject: [PATCH] bindings/javascript: Implement Statement.iterate()

---
 bindings/javascript/promise.js | 19 +++++++++++++++++--
 bindings/javascript/sync.js    | 17 ++++++++++++++++-
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/bindings/javascript/promise.js b/bindings/javascript/promise.js
index cd8d4d702..e23c8ac9d 100644
--- a/bindings/javascript/promise.js
+++ b/bindings/javascript/promise.js
@@ -320,8 +320,23 @@ class Statement {
    *
    * @param bindParameters - The bind parameters for executing the statement.
    */
-  *iterate(...bindParameters) {
-    throw new Error("not implemented");
+  async *iterate(...bindParameters) {
+    this.stmt.reset();
+    bindParams(this.stmt, bindParameters);
+    
+    while (true) {
+      const stepResult = this.stmt.step();
+      if (stepResult === STEP_IO) {
+        await this.db.db.ioLoopAsync();
+        continue;
+      }
+      if (stepResult === STEP_DONE) {
+        break;
+      }
+      if (stepResult === STEP_ROW) {
+        yield this.stmt.row();
+      }
+    }
   }
 
   /**
diff --git a/bindings/javascript/sync.js b/bindings/javascript/sync.js
index a3bd934fc..759b8d729 100644
--- a/bindings/javascript/sync.js
+++ b/bindings/javascript/sync.js
@@ -319,7 +319,22 @@ class Statement {
    * @param bindParameters - The bind parameters for executing the statement.
    */
   *iterate(...bindParameters) {
-    throw new Error("not implemented");
+    this.stmt.reset();
+    bindParams(this.stmt, bindParameters);
+    
+    while (true) {
+      const stepResult = this.stmt.step();
+      if (stepResult === STEP_IO) {
+        this.db.db.ioLoopSync();
+        continue;
+      }
+      if (stepResult === STEP_DONE) {
+        break;
+      }
+      if (stepResult === STEP_ROW) {
+        yield this.stmt.row();
+      }
+    }
   }
 
   /**