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.claude/skills/livewire-development/reference/javascript-hooks.md

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+# Livewire 4 JavaScript Integration
+
+## Interceptor System (v4)
+
+### Intercept Messages
+
+```js
+Livewire.interceptMessage(({ component, message, onFinish, onSuccess, onError }) => {
+    onFinish(() => { /* After response, before processing */ });
+    onSuccess(({ payload }) => { /* payload.snapshot, payload.effects */ });
+    onError(() => { /* Server errors */ });
+});
+```
+
+### Intercept Requests
+
+```js
+Livewire.interceptRequest(({ request, onResponse, onSuccess, onError, onFailure }) => {
+    onResponse(({ response }) => { /* When received */ });
+    onSuccess(({ response, responseJson }) => { /* Success */ });
+    onError(({ response, responseBody, preventDefault }) => { /* 4xx/5xx */ });
+    onFailure(({ error }) => { /* Network failures */ });
+});
+```
+
+### Component-Scoped Interceptors
+
+```blade
+<script>
+    this.$intercept('save', ({ component, onSuccess }) => {
+        onSuccess(() => console.log('Saved!'));
+    });
+</script>
+```
+
+## Magic Properties
+
+- `$errors` - Access validation errors from JavaScript
+- `$intercept` - Component-scoped interceptors