fix: input's value is string when passing number

.changeset/neat-maps-tickle.md

@@ -0,0 +1,5 @@
+---
+'@qwik.dev/core': patch
+---
+
+fix: input's value is string when passing number

packages/docs/src/routes/docs/(qwik)/components/rendering/index.mdx

@@ -180,11 +180,17 @@ The `bind:` is compiled away by the Qwik optimizer to a property set and an even
 import { component$, useSignal } from '@qwik.dev/core';
 
 export default component$(() => {
+  const count = useSignal(0);
   const firstName = useSignal('');
   const acceptConditions = useSignal(false);
 
   return (
     <form>
+      {/* For number inputs, use `valueAsNumber` instead of `value` to get the numeric value directly */}
+      <input type="number"
+        value={count.value}
+        onInput$={(_, el) => count.value = el.valueAsNumber }
+      />
       <input type="text"
         value={firstName.value}
         onInput$={(_, el) => firstName.value = el.value }

packages/qwik/src/core/shared/jsx/types/jsx-generated.ts

@@ -596,7 +596,7 @@ type SpecialAttrs = {
      * For type: HTMLInputTypeAttribute, excluding 'button' | 'reset' | 'submit' | 'checkbox' |
      * 'radio'
      */
-    'bind:value'?: Signal<string | undefined>;
+    'bind:value'?: Signal<string | undefined | number>;
     enterKeyHint?: 'enter' | 'done' | 'go' | 'next' | 'previous' | 'search' | 'send' | undefined;
     height?: Size | undefined;
     max?: number | string | undefined;

packages/qwik/src/core/tests/use-signal.spec.tsx

@@ -651,5 +651,44 @@ describe.each([
         </Component>
       );
     });
+
+    // help me to get a description
+    it('should update the sum when input values change', async () => {
+      const AppTest = component$(() => {
+        const a = useSignal(1);
+        const b = useSignal(2);
+        return (
+          <div>
+            {a.value} + {b.value} = {a.value + b.value}
+            <input type="number" id="input1" bind:value={a} />
+            <input type="number" id="input2" bind:value={b} />
+          </div>
+        );
+      });
+
+      const { document } = await render(<AppTest />, { debug: debug });
+
+      await expect(document.querySelector('div')).toMatchDOM(
+        <div>
+          1 + 2 = 3
+          <input type="number" id="input1" value="1" />
+          <input type="number" id="input2" value="2" />
+        </div>
+      );
+
+      const input1 = document.querySelector('#input1')! as HTMLInputElement;
+
+      input1.value = '10';
+      input1.valueAsNumber = 10;
+
+      await trigger(document.body, input1, 'input');
+      await expect(document.querySelector('div')).toMatchDOM(
+        <div>
+          10 + 2 = 12
+          <input type="number" id="input1" value="10" />
+          <input type="number" id="input2" value="2" />
+        </div>
+      );
+    });
   });
 });

packages/qwik/src/optimizer/core/src/snapshots/qwik_core__test__example_input_bind.snap

@@ -42,7 +42,7 @@ export const Greeter = /*#__PURE__*/ componentQrl(/*#__PURE__*/ inlinedQrl(()=>{
             "value": value,
             "onInput$": /*#__PURE__*/ inlinedQrl((_, elm)=>{
                 const [value] = useLexicalScope();
-                return value.value = elm.value;
+                return value.value = elm.type == "number" ? elm.valueAsNumber : elm.value;
             }, "s_6IZeYpXCNXA", [
                 value
             ])
@@ -51,7 +51,7 @@ export const Greeter = /*#__PURE__*/ componentQrl(/*#__PURE__*/ inlinedQrl(()=>{
             "checked": checked,
             "onInput$": /*#__PURE__*/ inlinedQrl((_, elm)=>{
                 const [checked] = useLexicalScope();
-                return checked.value = elm.checked;
+                return checked.value = elm.type == "number" ? elm.valueAsNumber : elm.checked;
             }, "s_JPI3bLCVnso", [
                 checked
             ])
@@ -60,7 +60,7 @@ export const Greeter = /*#__PURE__*/ componentQrl(/*#__PURE__*/ inlinedQrl(()=>{
             "stuff": stuff,
             "onChange$": /*#__PURE__*/ inlinedQrl((_, elm)=>{
                 const [stuff] = useLexicalScope();
-                return stuff.value = elm.stuff;
+                return stuff.value = elm.type == "number" ? elm.valueAsNumber : elm.stuff;
             }, "s_eyREJ0lZTFw", [
                 stuff
             ])

packages/qwik/src/optimizer/core/src/transform.rs

@@ -1311,17 +1311,59 @@ impl<'a> QwikTransform<'a> {
 													),
 												),
 												op: ast::AssignOp::Assign,
-												right: Box::new(ast::Expr::Member(
-													ast::MemberExpr {
-														obj: Box::new(ast::Expr::Ident(elm)),
-														prop: ast::MemberProp::Ident(
-															ast::IdentName::new(
-																prop_name, DUMMY_SP,
-															),
-														),
+												right: Box::new(ast::Expr::Cond(ast::CondExpr {
+													test: Box::new(ast::Expr::Bin(ast::BinExpr {
+														left: Box::new(ast::Expr::Member(
+															ast::MemberExpr {
+																obj: Box::new(ast::Expr::Ident(
+																	elm.clone(),
+																)),
+																prop: ast::MemberProp::Ident(
+																	ast::IdentName::new(
+																		"type".into(),
+																		DUMMY_SP,
+																	),
+																),
+																span: DUMMY_SP,
+															},
+														)),
 														span: DUMMY_SP,
-													},
-												)),
+														op: ast::BinaryOp::EqEq,
+														right: Box::new(ast::Expr::Lit(
+															ast::Lit::Str(ast::Str {
+																value: "number".into(),
+																span: DUMMY_SP,
+																raw: None,
+															}),
+														)),
+													})),
+													cons: Box::new(ast::Expr::Member(
+														ast::MemberExpr {
+															obj: Box::new(ast::Expr::Ident(
+																elm.clone(),
+															)),
+															prop: ast::MemberProp::Ident(
+																ast::IdentName::new(
+																	"valueAsNumber".into(),
+																	DUMMY_SP,
+																),
+															),
+															span: DUMMY_SP,
+														},
+													)),
+													alt: Box::new(ast::Expr::Member(
+														ast::MemberExpr {
+															obj: Box::new(ast::Expr::Ident(elm)),
+															prop: ast::MemberProp::Ident(
+																ast::IdentName::new(
+																	prop_name, DUMMY_SP,
+																),
+															),
+															span: DUMMY_SP,
+														},
+													)),
+													span: DUMMY_SP,
+												})),
 												span: DUMMY_SP,
 											}),
 										))),