feat: return an array of errors from a single validator (custom & schema library)

docs/framework/angular/guides/validation.md

@@ -190,8 +190,8 @@ Or use the `errorMap` property to access the specific error you're looking for:
       #age="field"
     >
       <!-- ... -->
-      @if (age.api.state.meta.errorMap['onChange']) {
-        <em role="alert">{{ age.api.state.meta.errorMap['onChange'] }}</em>
+      @if (age.api.state.meta.errorMap['onChange']?.length) {
+        <em role="alert">{{ age.api.state.meta.errorMap['onChange'][0] }}</em>
       }
     </ng-container>
   `,
@@ -219,10 +219,10 @@ Example:
     <div>
       <ng-container [tanstackField]="form" name="age" #age="field">
         <!-- ... -->
-        @if (formErrorMap().onChange) {
+        @if (formErrorMap().onChange?.length) {
           <div>
             <em
-              >There was an error on the form: {{ formErrorMap().onChange }}</em
+              >There was an error on the form: {{ formErrorMap().onChange[0] }}</em
             >
           </div>
         }

docs/framework/react/guides/validation.md

@@ -142,8 +142,8 @@ Or use the `errorMap` property to access the specific error you're looking for:
   {(field) => (
     <>
       {/* ... */}
-      {field.state.meta.errorMap['onChange'] ? (
-        <em>{field.state.meta.errorMap['onChange']}</em>
+      {field.state.meta.errorMap['onChange']?.length ? (
+        <em>{field.state.meta.errorMap['onChange'][0]}</em>
       ) : null}
     </>
   )}
@@ -183,9 +183,9 @@ export default function App() {
   return (
     <div>
       {/* ... */}
-      {formErrorMap.onChange ? (
+      {formErrorMap.onChange?.length ? (
         <div>
-          <em>There was an error on the form: {formErrorMap.onChange}</em>
+          <em>There was an error on the form: {formErrorMap.onChange[0]}</em>
         </div>
       ) : null}
       {/* ... */}
@@ -251,9 +251,9 @@ export default function App() {
         <form.Subscribe
           selector={(state) => [state.errorMap]}
           children={([errorMap]) =>
-            errorMap.onSubmit ? (
+            errorMap.onSubmit?.length ? (
               <div>
-                <em>There was an error on the form: {errorMap.onSubmit}</em>
+                <em>There was an error on the form: {errorMap.onSubmit[0]}</em>
               </div>
             ) : null
           }

docs/framework/solid/guides/validation.md

@@ -144,8 +144,8 @@ Or use the `errorMap` property to access the specific error you're looking for:
   {(field) => (
     <>
       {/* ... */}
-      {field().state.meta.errorMap['onChange'] ? (
-        <em>{field().state.meta.errorMap['onChange']}</em>
+      {field().state.meta.errorMap['onChange']?.length ? (
+        <em>{field().state.meta.errorMap['onChange'][0]}</em>
       ) : null}
     </>
   )}
@@ -185,9 +185,9 @@ export default function App() {
   return (
     <div>
       {/* ... */}
-      {formErrorMap().onChange ? (
+      {formErrorMap().onChange?.length ? (
         <div>
-          <em>There was an error on the form: {formErrorMap().onChange}</em>
+          <em>There was an error on the form: {formErrorMap().onChange[0]}</em>
         </div>
       ) : null}
       {/* ... */}

docs/framework/vue/guides/validation.md

@@ -136,7 +136,7 @@ Or use the `errorMap` property to access the specific error you're looking for:
         }">
             <template v-slot="{ field }">
             <!-- ... -->
-                <em role="alert" v-if="field.state.meta.errorMap['onChange']">{{ field.state.meta.errorMap['onChange'] }}</em>
+                <em role="alert" v-if="field.state.meta.errorMap['onChange']?.length">{{ field.state.meta.errorMap['onChange'][0] }}</em>
             </template>
     </form.Field>
  <!-- ... -->
@@ -178,9 +178,9 @@ const formErrorMap = form.useStore((state) => state.errorMap)
 
 <template>
     <!-- ... -->
-    <div v-if="formErrorMap.onChange">
+    <div v-if="formErrorMap.onChange?.length">
         <em role="alert">
-            There was an error on the form: {{formErrorMap.onChange }}
+            There was an error on the form: {{formErrorMap.onChange[0] }}
         </em>
     </div>
     <!-- ... -->

docs/reference/classes/fieldapi.md

@@ -47,7 +47,7 @@ Initializes a new `FieldApi` instance.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:477](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L477)
+[packages/form-core/src/FieldApi.ts:478](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L478)
 
 ## Properties
 
@@ -61,7 +61,7 @@ A reference to the form API instance.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:441](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L441)
+[packages/form-core/src/FieldApi.ts:442](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L442)
 
 ***
 
@@ -75,7 +75,7 @@ The field name.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:451](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L451)
+[packages/form-core/src/FieldApi.ts:452](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L452)
 
 ***
 
@@ -89,7 +89,7 @@ The field options.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:455](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L455)
+[packages/form-core/src/FieldApi.ts:456](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L456)
 
 ***
 
@@ -103,7 +103,7 @@ The field state store.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:465](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L465)
+[packages/form-core/src/FieldApi.ts:466](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L466)
 
 ***
 
@@ -115,7 +115,7 @@ timeoutIds: Record<ValidationCause, null | Timeout>;
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:472](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L472)
+[packages/form-core/src/FieldApi.ts:473](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L473)
 
 ## Accessors
 
@@ -135,7 +135,7 @@ The current field state.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:469](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L469)
+[packages/form-core/src/FieldApi.ts:470](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L470)
 
 ## Methods
 
@@ -153,7 +153,7 @@ Gets the field information object.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:672](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L672)
+[packages/form-core/src/FieldApi.ts:676](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L676)
 
 ***
 
@@ -169,7 +169,7 @@ getMeta(): FieldMeta
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:661](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L661)
+[packages/form-core/src/FieldApi.ts:665](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L665)
 
 ***
 
@@ -191,7 +191,7 @@ Use `field.state.value` instead.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:643](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L643)
+[packages/form-core/src/FieldApi.ts:647](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L647)
 
 ***
 
@@ -209,7 +209,7 @@ Handles the blur event.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:1024](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L1024)
+[packages/form-core/src/FieldApi.ts:1030](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L1030)
 
 ***
 
@@ -233,7 +233,7 @@ Handles the change event.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:1017](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L1017)
+[packages/form-core/src/FieldApi.ts:1023](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L1023)
 
 ***
 
@@ -268,7 +268,7 @@ Inserts a value at the specified index, shifting the subsequent values to the ri
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:685](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L685)
+[packages/form-core/src/FieldApi.ts:689](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L689)
 
 ***
 
@@ -290,7 +290,7 @@ Mounts the field instance to the form.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:567](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L567)
+[packages/form-core/src/FieldApi.ts:568](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L568)
 
 ***
 
@@ -325,7 +325,7 @@ Moves the value at the first specified index to the second specified index.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:715](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L715)
+[packages/form-core/src/FieldApi.ts:719](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L719)
 
 ***
 
@@ -353,7 +353,7 @@ Pushes a new value to the field.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:677](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L677)
+[packages/form-core/src/FieldApi.ts:681](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L681)
 
 ***
 
@@ -381,7 +381,7 @@ Removes a value at the specified index.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:703](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L703)
+[packages/form-core/src/FieldApi.ts:707](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L707)
 
 ***
 
@@ -416,7 +416,7 @@ Replaces a value at the specified index.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:694](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L694)
+[packages/form-core/src/FieldApi.ts:698](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L698)
 
 ***
 
@@ -440,7 +440,7 @@ Updates the field's errorMap
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:1044](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L1044)
+[packages/form-core/src/FieldApi.ts:1050](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L1050)
 
 ***
 
@@ -464,7 +464,7 @@ Sets the field metadata.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:666](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L666)
+[packages/form-core/src/FieldApi.ts:670](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L670)
 
 ***
 
@@ -492,7 +492,7 @@ Sets the field value and run the `change` validator.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:650](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L650)
+[packages/form-core/src/FieldApi.ts:654](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L654)
 
 ***
 
@@ -527,7 +527,7 @@ Swaps the values at the specified indices.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:709](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L709)
+[packages/form-core/src/FieldApi.ts:713](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L713)
 
 ***
 
@@ -551,14 +551,14 @@ Updates the field instance with new options.
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:606](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L606)
+[packages/form-core/src/FieldApi.ts:610](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L610)
 
 ***
 
 ### validate()
 
 ```ts
-validate(cause): ValidationError[] | Promise<ValidationError[]>
+validate(cause): string[] | Promise<string[]>
 ```
 
 Validates the field value.
@@ -571,8 +571,8 @@ Validates the field value.
 
 #### Returns
 
-[`ValidationError`](../type-aliases/validationerror.md)[] \| `Promise`\<[`ValidationError`](../type-aliases/validationerror.md)[]\>
+`string`[] \| `Promise`\<`string`[]\>
 
 #### Defined in
 
-[packages/form-core/src/FieldApi.ts:989](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L989)
+[packages/form-core/src/FieldApi.ts:995](https://github.com/TanStack/form/blob/main/packages/form-core/src/FieldApi.ts#L995)