🤖 Merge PR DefinitelyTyped#74642 [@types/qs]: add strictMerge option to IParseBaseOptions by @kshitijanurag

Author: kshitijanurag

types/qs/index.d.ts

@@ -58,6 +58,7 @@ declare namespace QueryString {
         allowEmptyArrays?: boolean | undefined;
         duplicates?: "combine" | "first" | "last" | undefined;
         strictDepth?: boolean | undefined;
+        strictMerge?: boolean | undefined;
         throwOnLimitExceeded?: boolean | undefined;
     }
 

types/qs/package.json

@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "@types/qs",
-    "version": "6.14.9999",
+    "version": "6.15.9999",
     "projects": [
         "https://github.com/ljharb/qs"
     ],

types/qs/qs-tests.ts

@@ -426,6 +426,40 @@ qs.parse("a=b&c=d", { delimiter: "&" });
     );
 });
 
+(() => {
+    assert.deepEqual(
+        qs.parse("a[b]=c&a=d", { strictMerge: false }),
+        { a: { b: "c", d: true } },
+    );
+
+    assert.deepEqual(
+        qs.parse("a[b]=c&a=toString", { strictMerge: false }),
+        { a: { b: "c" } },
+    );
+
+    assert.deepEqual(
+        qs.parse("a[b]=c&a=toString", { strictMerge: false, allowPrototypes: true }),
+        { a: { b: "c", toString: true } },
+    );
+});
+
+(() => {
+    assert.deepEqual(
+        qs.parse("a[b]=c&a=d"),
+        { a: [{ b: "c" }, "d"] },
+    );
+
+    assert.deepEqual(
+        qs.parse("a=d&a[b]=c"),
+        { a: ["d", { b: "c" }] },
+    );
+
+    assert.deepEqual(
+        qs.parse("a[b]=c&a=toString"),
+        { a: [{ b: "c" }, "toString"] },
+    );
+});
+
 declare const myQuery: { a: string; b?: string | undefined };
 const myQueryCopy: qs.ParsedQs = myQuery;