Ok

dist/sigpro-ui.esm.js

@@ -18,7 +18,10 @@ var ensureNode = (n) => n?._isRuntime ? n.container : n instanceof Node ? n : do
 var activeEffect = null;
 var activeOwner = null;
 var isFlushing = false;
+var batchDepth = 0;
 var effectQueue = new Set;
+var proxyCache = new WeakMap;
+var ITER = Symbol("iter");
 var MOUNTED_NODES = new WeakMap;
 var dispose = (eff) => {
   if (!eff || eff._disposed)
@@ -49,16 +52,6 @@ var onUnmount = (fn) => {
   if (activeOwner)
     (activeOwner._cleanups ||= new Set).add(fn);
 };
-var set = (signal, path, value) => {
-  if (value === undefined)
-    return signal(isFunc(path) ? path(signal()) : path);
-  const keys = path.split("."), root = { ...signal() };
-  let acc = root, k;
-  for (k of keys.slice(0, -1))
-    acc = acc[k] = { ...acc[k] || {} };
-  acc[keys.at(-1)] = value;
-  signal(root);
-};
 var untrack = (fn) => {
   const p = activeEffect;
   activeEffect = null;
@@ -111,6 +104,17 @@ var flush = () => {
       e();
   isFlushing = false;
 };
+var Batch = (fn) => {
+  batchDepth++;
+  try {
+    return fn();
+  } finally {
+    batchDepth--;
+    if (batchDepth === 0 && effectQueue.size > 0 && !isFlushing) {
+      flush();
+    }
+  }
+};
 var trackUpdate = (subs, trigger = false) => {
   if (!trigger && activeEffect && !activeEffect._disposed) {
     subs.add(activeEffect);
@@ -129,7 +133,7 @@ var trackUpdate = (subs, trigger = false) => {
         hasQueue = true;
       }
     });
-    if (hasQueue && !isFlushing)
+    if (hasQueue && !isFlushing && batchDepth === 0)
       queueMicrotask(flush);
   }
 };
@@ -193,6 +197,49 @@ var $2 = (val, key = null) => {
     return val;
   };
 };
+var $$ = (target) => {
+  if (!isObj(target))
+    return target;
+  if (proxyCache.has(target))
+    return proxyCache.get(target);
+  const subsMap = new Map;
+  const getSubs = (k) => {
+    let s = subsMap.get(k);
+    if (!s)
+      subsMap.set(k, s = new Set);
+    return s;
+  };
+  const proxy = new Proxy(target, {
+    get(t, k) {
+      trackUpdate(getSubs(k));
+      return $$(t[k]);
+    },
+    set(t, k, v) {
+      const isNew = !(k in t);
+      if (!Object.is(t[k], v)) {
+        t[k] = v;
+        trackUpdate(getSubs(k), true);
+        if (isNew)
+          trackUpdate(getSubs(ITER), true);
+      }
+      return true;
+    },
+    deleteProperty(t, k) {
+      const res = Reflect.deleteProperty(t, k);
+      if (res) {
+        trackUpdate(getSubs(k), true);
+        trackUpdate(getSubs(ITER), true);
+      }
+      return res;
+    },
+    ownKeys(t) {
+      trackUpdate(getSubs(ITER));
+      return Reflect.ownKeys(t);
+    }
+  });
+  proxyCache.set(target, proxy);
+  return proxy;
+};
 var Watch2 = (sources, cb) => {
   if (cb === undefined) {
     const effect2 = createEffect(sources);
@@ -387,42 +434,22 @@ var Render = (renderFn) => {
     }
   };
 };
-var If2 = (cond, ifYes, ifNot = null, trans = null) => {
+var If2 = (cond, ifYes, ifNot = null) => {
   const anchor = doc.createTextNode("");
   const root = Tag2("div", { style: "display:contents" }, [anchor]);
   let currentView = null;
-  let last = null;
-  let exitPromise = null;
   Watch2(() => !!(isFunc(cond) ? cond() : cond), (show) => {
-    if (show === last)
-      return;
-    last = show;
-    const disposeView = () => {
-      if (currentView) {
-        currentView.destroy();
-        currentView = null;
-      }
-    };
-    if (currentView && !show && trans?.out) {
-      if (exitPromise && exitPromise.cancel)
-        exitPromise.cancel();
-      const anim = trans.out(currentView.container, disposeView);
-      exitPromise = anim;
-      if (anim && anim.finished)
-        anim.finished.then(disposeView);
-      else
-        disposeView();
-    } else {
-      disposeView();
+    if (currentView) {
+      currentView.destroy();
+      currentView = null;
     }
     const content = show ? ifYes : ifNot;
     if (content) {
       currentView = Render(() => isFunc(content) ? content() : content);
       root.insertBefore(currentView.container, anchor);
-      if (trans?.in)
-        trans.in(currentView.container);
     }
   });
+  onUnmount(() => currentView?.destroy());
   return root;
 };
 var For2 = (src, itemFn, keyFn) => {
@@ -501,7 +528,7 @@ var Mount2 = (comp, target) => {
   MOUNTED_NODES.set(t, inst);
   return inst;
 };
-var SigPro = Object.freeze({ $: $2, Watch: Watch2, Tag: Tag2, Render, If: If2, For: For2, Router, Mount: Mount2, onMount, onUnmount, set });
+var SigPro = Object.freeze({ $: $2, $$, Watch: Watch2, Tag: Tag2, Render, If: If2, For: For2, Router, Mount: Mount2, onMount, onUnmount, Batch });
 if (typeof window !== "undefined") {
   Object.assign(window, SigPro);
   "div span p h1 h2 h3 h4 h5 h6 br hr section article aside nav main header footer ul ol li a em strong pre code form label input textarea select button img svg".split(" ").forEach((t) => window[t[0].toUpperCase() + t.slice(1)] = (p, c) => SigPro.Tag(t, p, c));

dist/sigpro-ui.js

@@ -84,7 +84,10 @@
   var activeEffect = null;
   var activeOwner = null;
   var isFlushing = false;
+  var batchDepth = 0;
   var effectQueue = new Set;
+  var proxyCache = new WeakMap;
+  var ITER = Symbol("iter");
   var MOUNTED_NODES = new WeakMap;
   var dispose = (eff) => {
     if (!eff || eff._disposed)
@@ -115,16 +118,6 @@
     if (activeOwner)
       (activeOwner._cleanups ||= new Set).add(fn);
   };
-  var set = (signal, path, value) => {
-    if (value === undefined)
-      return signal(isFunc(path) ? path(signal()) : path);
-    const keys = path.split("."), root = { ...signal() };
-    let acc = root, k;
-    for (k of keys.slice(0, -1))
-      acc = acc[k] = { ...acc[k] || {} };
-    acc[keys.at(-1)] = value;
-    signal(root);
-  };
   var untrack = (fn) => {
     const p = activeEffect;
     activeEffect = null;
@@ -177,6 +170,17 @@
         e();
     isFlushing = false;
   };
+  var Batch = (fn) => {
+    batchDepth++;
+    try {
+      return fn();
+    } finally {
+      batchDepth--;
+      if (batchDepth === 0 && effectQueue.size > 0 && !isFlushing) {
+        flush();
+      }
+    }
+  };
   var trackUpdate = (subs, trigger = false) => {
     if (!trigger && activeEffect && !activeEffect._disposed) {
       subs.add(activeEffect);
@@ -195,7 +199,7 @@
           hasQueue = true;
         }
       });
-      if (hasQueue && !isFlushing)
+      if (hasQueue && !isFlushing && batchDepth === 0)
         queueMicrotask(flush);
     }
   };
@@ -259,6 +263,49 @@
       return val;
     };
   };
+  var $$ = (target) => {
+    if (!isObj(target))
+      return target;
+    if (proxyCache.has(target))
+      return proxyCache.get(target);
+    const subsMap = new Map;
+    const getSubs = (k) => {
+      let s = subsMap.get(k);
+      if (!s)
+        subsMap.set(k, s = new Set);
+      return s;
+    };
+    const proxy = new Proxy(target, {
+      get(t, k) {
+        trackUpdate(getSubs(k));
+        return $$(t[k]);
+      },
+      set(t, k, v) {
+        const isNew = !(k in t);
+        if (!Object.is(t[k], v)) {
+          t[k] = v;
+          trackUpdate(getSubs(k), true);
+          if (isNew)
+            trackUpdate(getSubs(ITER), true);
+        }
+        return true;
+      },
+      deleteProperty(t, k) {
+        const res = Reflect.deleteProperty(t, k);
+        if (res) {
+          trackUpdate(getSubs(k), true);
+          trackUpdate(getSubs(ITER), true);
+        }
+        return res;
+      },
+      ownKeys(t) {
+        trackUpdate(getSubs(ITER));
+        return Reflect.ownKeys(t);
+      }
+    });
+    proxyCache.set(target, proxy);
+    return proxy;
+  };
   var Watch2 = (sources, cb) => {
     if (cb === undefined) {
       const effect2 = createEffect(sources);
@@ -453,42 +500,22 @@
       }
     };
   };
-  var If2 = (cond, ifYes, ifNot = null, trans = null) => {
+  var If2 = (cond, ifYes, ifNot = null) => {
     const anchor = doc.createTextNode("");
     const root = Tag2("div", { style: "display:contents" }, [anchor]);
     let currentView = null;
-    let last = null;
-    let exitPromise = null;
     Watch2(() => !!(isFunc(cond) ? cond() : cond), (show) => {
-      if (show === last)
-        return;
-      last = show;
-      const disposeView = () => {
-        if (currentView) {
-          currentView.destroy();
-          currentView = null;
-        }
-      };
-      if (currentView && !show && trans?.out) {
-        if (exitPromise && exitPromise.cancel)
-          exitPromise.cancel();
-        const anim = trans.out(currentView.container, disposeView);
-        exitPromise = anim;
-        if (anim && anim.finished)
-          anim.finished.then(disposeView);
-        else
-          disposeView();
-      } else {
-        disposeView();
+      if (currentView) {
+        currentView.destroy();
+        currentView = null;
       }
       const content = show ? ifYes : ifNot;
       if (content) {
         currentView = Render(() => isFunc(content) ? content() : content);
         root.insertBefore(currentView.container, anchor);
-        if (trans?.in)
-          trans.in(currentView.container);
       }
     });
+    onUnmount(() => currentView?.destroy());
     return root;
   };
   var For2 = (src, itemFn, keyFn) => {
@@ -567,7 +594,7 @@
     MOUNTED_NODES.set(t, inst);
     return inst;
   };
-  var SigPro = Object.freeze({ $: $2, Watch: Watch2, Tag: Tag2, Render, If: If2, For: For2, Router, Mount: Mount2, onMount, onUnmount, set });
+  var SigPro = Object.freeze({ $: $2, $$, Watch: Watch2, Tag: Tag2, Render, If: If2, For: For2, Router, Mount: Mount2, onMount, onUnmount, Batch });
   if (typeof window !== "undefined") {
     Object.assign(window, SigPro);
     "div span p h1 h2 h3 h4 h5 h6 br hr section article aside nav main header footer ul ol li a em strong pre code form label input textarea select button img svg".split(" ").forEach((t) => window[t[0].toUpperCase() + t.slice(1)] = (p, c) => SigPro.Tag(t, p, c));

docs/sigpro-ui.min.js

@@ -84,7 +84,10 @@
   var activeEffect = null;
   var activeOwner = null;
   var isFlushing = false;
+  var batchDepth = 0;
   var effectQueue = new Set;
+  var proxyCache = new WeakMap;
+  var ITER = Symbol("iter");
   var MOUNTED_NODES = new WeakMap;
   var dispose = (eff) => {
     if (!eff || eff._disposed)
@@ -115,16 +118,6 @@
     if (activeOwner)
       (activeOwner._cleanups ||= new Set).add(fn);
   };
-  var set = (signal, path, value) => {
-    if (value === undefined)
-      return signal(isFunc(path) ? path(signal()) : path);
-    const keys = path.split("."), root = { ...signal() };
-    let acc = root, k;
-    for (k of keys.slice(0, -1))
-      acc = acc[k] = { ...acc[k] || {} };
-    acc[keys.at(-1)] = value;
-    signal(root);
-  };
   var untrack = (fn) => {
     const p = activeEffect;
     activeEffect = null;
@@ -177,6 +170,17 @@
         e();
     isFlushing = false;
   };
+  var Batch = (fn) => {
+    batchDepth++;
+    try {
+      return fn();
+    } finally {
+      batchDepth--;
+      if (batchDepth === 0 && effectQueue.size > 0 && !isFlushing) {
+        flush();
+      }
+    }
+  };
   var trackUpdate = (subs, trigger = false) => {
     if (!trigger && activeEffect && !activeEffect._disposed) {
       subs.add(activeEffect);
@@ -195,7 +199,7 @@
           hasQueue = true;
         }
       });
-      if (hasQueue && !isFlushing)
+      if (hasQueue && !isFlushing && batchDepth === 0)
         queueMicrotask(flush);
     }
   };
@@ -259,6 +263,49 @@
       return val;
     };
   };
+  var $$ = (target) => {
+    if (!isObj(target))
+      return target;
+    if (proxyCache.has(target))
+      return proxyCache.get(target);
+    const subsMap = new Map;
+    const getSubs = (k) => {
+      let s = subsMap.get(k);
+      if (!s)
+        subsMap.set(k, s = new Set);
+      return s;
+    };
+    const proxy = new Proxy(target, {
+      get(t, k) {
+        trackUpdate(getSubs(k));
+        return $$(t[k]);
+      },
+      set(t, k, v) {
+        const isNew = !(k in t);
+        if (!Object.is(t[k], v)) {
+          t[k] = v;
+          trackUpdate(getSubs(k), true);
+          if (isNew)
+            trackUpdate(getSubs(ITER), true);
+        }
+        return true;
+      },
+      deleteProperty(t, k) {
+        const res = Reflect.deleteProperty(t, k);
+        if (res) {
+          trackUpdate(getSubs(k), true);
+          trackUpdate(getSubs(ITER), true);
+        }
+        return res;
+      },
+      ownKeys(t) {
+        trackUpdate(getSubs(ITER));
+        return Reflect.ownKeys(t);
+      }
+    });
+    proxyCache.set(target, proxy);
+    return proxy;
+  };
   var Watch2 = (sources, cb) => {
     if (cb === undefined) {
       const effect2 = createEffect(sources);
@@ -453,42 +500,22 @@
       }
     };
   };
-  var If2 = (cond, ifYes, ifNot = null, trans = null) => {
+  var If2 = (cond, ifYes, ifNot = null) => {
     const anchor = doc.createTextNode("");
     const root = Tag2("div", { style: "display:contents" }, [anchor]);
     let currentView = null;
-    let last = null;
-    let exitPromise = null;
     Watch2(() => !!(isFunc(cond) ? cond() : cond), (show) => {
-      if (show === last)
-        return;
-      last = show;
-      const disposeView = () => {
-        if (currentView) {
-          currentView.destroy();
-          currentView = null;
-        }
-      };
-      if (currentView && !show && trans?.out) {
-        if (exitPromise && exitPromise.cancel)
-          exitPromise.cancel();
-        const anim = trans.out(currentView.container, disposeView);
-        exitPromise = anim;
-        if (anim && anim.finished)
-          anim.finished.then(disposeView);
-        else
-          disposeView();
-      } else {
-        disposeView();
+      if (currentView) {
+        currentView.destroy();
+        currentView = null;
       }
       const content = show ? ifYes : ifNot;
       if (content) {
         currentView = Render(() => isFunc(content) ? content() : content);
         root.insertBefore(currentView.container, anchor);
-        if (trans?.in)
-          trans.in(currentView.container);
       }
     });
+    onUnmount(() => currentView?.destroy());
     return root;
   };
   var For2 = (src, itemFn, keyFn) => {
@@ -567,7 +594,7 @@
     MOUNTED_NODES.set(t, inst);
     return inst;
   };
-  var SigPro = Object.freeze({ $: $2, Watch: Watch2, Tag: Tag2, Render, If: If2, For: For2, Router, Mount: Mount2, onMount, onUnmount, set });
+  var SigPro = Object.freeze({ $: $2, $$, Watch: Watch2, Tag: Tag2, Render, If: If2, For: For2, Router, Mount: Mount2, onMount, onUnmount, Batch });
   if (typeof window !== "undefined") {
     Object.assign(window, SigPro);
     "div span p h1 h2 h3 h4 h5 h6 br hr section article aside nav main header footer ul ol li a em strong pre code form label input textarea select button img svg".split(" ").forEach((t) => window[t[0].toUpperCase() + t.slice(1)] = (p, c) => SigPro.Tag(t, p, c));

src/sigpro.js

@@ -8,10 +8,12 @@ const ensureNode = n => n?._isRuntime ? n.container : (n instanceof Node ? n : d
 let activeEffect = null
 let activeOwner = null
 let isFlushing = false
+let batchDepth = 0
 const effectQueue = new Set()
+const proxyCache = new WeakMap()
+const ITER = Symbol('iter')
 const MOUNTED_NODES = new WeakMap()
 
-// effect cleanup
 const dispose = eff => {
   if (!eff || eff._disposed) return
   eff._disposed = true
@@ -33,7 +35,6 @@ const dispose = eff => {
   }
 }
 
-// helpers
 const onMount = fn => {
   if (activeOwner) (activeOwner._mounts ||= []).push(fn)
 }
@@ -42,42 +43,32 @@ const onUnmount = fn => {
   if (activeOwner) (activeOwner._cleanups ||= new Set()).add(fn)
 }
 
-const set = (signal, path, value) => {
-  if (value === undefined) return signal(isFunc(path) ? path(signal()) : path)
-  const keys = path.split('.'), root = { ...signal() }
-  let acc = root, k
-  for (k of keys.slice(0, -1)) acc = acc[k] = { ...(acc[k] || {}) }
-  acc[keys.at(-1)] = value
-  signal(root)
-}
-
 const untrack = fn => {
   const p = activeEffect
   activeEffect = null
   try { return fn() } finally { activeEffect = p }
 }
 
-// effect creation
 const createEffect = (fn, isComputed = false) => {
   const effect = () => {
-  if (effect._disposed) return
-  if (effect._deps) effect._deps.forEach(s => s.delete(effect))
-  if (effect._cleanups) {
-    effect._cleanups.forEach(c => c())
-    effect._cleanups.clear()
+    if (effect._disposed) return
+    if (effect._deps) effect._deps.forEach(s => s.delete(effect))
+    if (effect._cleanups) {
+      effect._cleanups.forEach(c => c())
+      effect._cleanups.clear()
+    }
+    const prevEffect = activeEffect
+    const prevOwner = activeOwner
+    activeEffect = activeOwner = effect
+    try {
+      return effect._result = fn()
+    } catch (e) {
+      console.error("[SigPro]", e)
+    } finally {
+      activeEffect = prevEffect
+      activeOwner = prevOwner
+    }
   }
-  const prevEffect = activeEffect
-  const prevOwner = activeOwner
-  activeEffect = activeOwner = effect
-  try {
-    return effect._result = fn()
-  } catch (e) {
-    console.error("[SigPro]", e)
-  } finally {
-    activeEffect = prevEffect
-    activeOwner = prevOwner
-  }
-}
   effect._deps = effect._cleanups = effect._children = null
   effect._disposed = false
   effect._isComputed = isComputed
@@ -97,6 +88,18 @@ const flush = () => {
   isFlushing = false
 }
 
+const Batch = fn => {
+  batchDepth++
+  try {
+    return fn()
+  } finally {
+    batchDepth--
+    if (batchDepth === 0 && effectQueue.size > 0 && !isFlushing) {
+      flush()
+    }
+  }
+}
+
 const trackUpdate = (subs, trigger = false) => {
   if (!trigger && activeEffect && !activeEffect._disposed) {
     subs.add(activeEffect)
@@ -113,11 +116,10 @@ const trackUpdate = (subs, trigger = false) => {
         hasQueue = true
       }
     })
-    if (hasQueue && !isFlushing) queueMicrotask(flush)
+    if (hasQueue && !isFlushing && batchDepth === 0) queueMicrotask(flush)
   }
 }
 
-// signal creation
 const $ = (val, key = null) => {
   const subs = new Set()
   if (isFunc(val)) {
@@ -170,7 +172,50 @@ const $ = (val, key = null) => {
   }
 }
 
-// create Watch
+const $$ = (target) => {
+  if (!isObj(target)) return target
+
+  if (proxyCache.has(target)) return proxyCache.get(target)
+
+  const subsMap = new Map()
+  const getSubs = (k) => {
+    let s = subsMap.get(k)
+    if (!s) subsMap.set(k, s = new Set())
+    return s
+  }
+
+  const proxy = new Proxy(target, {
+    get(t, k) {
+      trackUpdate(getSubs(k))
+      return $$(t[k])
+    },
+    set(t, k, v) {
+      const isNew = !(k in t)
+      if (!Object.is(t[k], v)) {
+        t[k] = v
+        trackUpdate(getSubs(k), true)
+        if (isNew) trackUpdate(getSubs(ITER), true)
+      }
+      return true
+    },
+    deleteProperty(t, k) {
+      const res = Reflect.deleteProperty(t, k)
+      if (res) {
+        trackUpdate(getSubs(k), true)
+        trackUpdate(getSubs(ITER), true)
+      }
+      return res
+    },
+    ownKeys(t) {
+      trackUpdate(getSubs(ITER))
+      return Reflect.ownKeys(t)
+    }
+  })
+
+  proxyCache.set(target, proxy)
+  return proxy
+}
+
 const Watch = (sources, cb) => {
   if (cb === undefined) {
     const effect = createEffect(sources)
@@ -209,42 +254,41 @@ const validateAttr = (key, val) => {
   return val
 }
 
-// create Tag
 const Tag = (tag, props = {}, children = []) => {
   if (props instanceof Node || isArr(props) || !isObj(props)) {
     children = props
     props = {}
   }
   if (isFunc(tag)) {
-  const ctx = { _mounts: [], _cleanups: new Set() }
-  const effect = createEffect(() => {
-    const result = tag(props, {
-      children,
-      emit: (ev, ...args) => props[`on${ev[0].toUpperCase()}${ev.slice(1)}`]?.(...args)
+    const ctx = { _mounts: [], _cleanups: new Set() }
+    const effect = createEffect(() => {
+      const result = tag(props, {
+        children,
+        emit: (ev, ...args) => props[`on${ev[0].toUpperCase()}${ev.slice(1)}`]?.(...args)
+      })
+      effect._result = result
+      return result
     })
-    effect._result = result
-    return result
-  })
-  effect()
-  
-  const result = effect._result
-  if (result == null) return null
+    effect()
 
-  const node = (result instanceof Node || (isArr(result) && result.every(n => n instanceof Node)))
-    ? result
-    : doc.createTextNode(String(result))
-  
-  const attach = n => {
-    if (isObj(n) && !n._isRuntime) {
-      n._mounts = effect._mounts || []
-      n._cleanups = effect._cleanups || new Set()
-      n._ownerEffect = effect
+    const result = effect._result
+    if (result == null) return null
+
+    const node = (result instanceof Node || (isArr(result) && result.every(n => n instanceof Node)))
+      ? result
+      : doc.createTextNode(String(result))
+
+    const attach = n => {
+      if (isObj(n) && !n._isRuntime) {
+        n._mounts = effect._mounts || []
+        n._cleanups = effect._cleanups || new Set()
+        n._ownerEffect = effect
+      }
     }
+
+    isArr(node) ? node.forEach(attach) : attach(node)
+    return node
   }
-  
-  isArr(node) ? node.forEach(attach) : attach(node)
-  return node
-}
   const isSVG = /^(svg|path|circle|rect|line|polyline|polygon|g|defs|text|tspan|use)$/.test(tag)
   const el = isSVG ? doc.createElementNS("http://www.w3.org/2000/svg", tag) : doc.createElement(tag)
   el._cleanups = new Set()
@@ -322,7 +366,6 @@ const Tag = (tag, props = {}, children = []) => {
   return el
 }
 
-// create Render
 const Render = renderFn => {
   const cleanups = new Set()
   const mounts = []
@@ -330,7 +373,7 @@ const Render = renderFn => {
   const previousEffect = activeEffect
   const container = doc.createElement("div")
   container.style.display = "contents"
-  container.setAttribute("role", "presentation")   // ← único cambio real
+  container.setAttribute("role", "presentation")
   activeOwner = { _cleanups: cleanups, _mounts: mounts }
   activeEffect = null
 
@@ -365,49 +408,31 @@ const Render = renderFn => {
   }
 }
 
-// create If
-const If = (cond, ifYes, ifNot = null, trans = null) => {
+const If = (cond, ifYes, ifNot = null) => {
   const anchor = doc.createTextNode("")
   const root = Tag("div", { style: "display:contents" }, [anchor])
   let currentView = null
-  let last = null
-  let exitPromise = null
 
   Watch(
     () => !!(isFunc(cond) ? cond() : cond),
     show => {
-      if (show === last) return
-      last = show
-
-      const disposeView = () => {
-        if (currentView) {
-          currentView.destroy()
-          currentView = null
-        }
-      }
-
-      if (currentView && !show && trans?.out) {
-        if (exitPromise && exitPromise.cancel) exitPromise.cancel()
-        const anim = trans.out(currentView.container, disposeView)
-        exitPromise = anim
-        if (anim && anim.finished) anim.finished.then(disposeView)
-        else disposeView()
-      } else {
-        disposeView()
+      if (currentView) {
+        currentView.destroy()
+        currentView = null
       }
 
       const content = show ? ifYes : ifNot
       if (content) {
         currentView = Render(() => isFunc(content) ? content() : content)
         root.insertBefore(currentView.container, anchor)
-        if (trans?.in) trans.in(currentView.container)
       }
     }
   )
+
+  onUnmount(() => currentView?.destroy())
   return root
 }
 
-// create For
 const For = (src, itemFn, keyFn) => {
   const anchor = doc.createTextNode("")
   const root = Tag("div", { style: "display:contents" }, [anchor])
@@ -438,7 +463,6 @@ const For = (src, itemFn, keyFn) => {
   return root
 }
 
-// create Router
 const Router = routes => {
   const getHash = () => window.location.hash.slice(1) || "/"
   const path = $(getHash())
@@ -482,7 +506,7 @@ const Mount = (comp, target) => {
   return inst
 }
 
-const SigPro = Object.freeze({ $, Watch, Tag, Render, If, For, Router, Mount, onMount, onUnmount, set })
+const SigPro = Object.freeze({ $, $$, Watch, Tag, Render, If, For, Router, Mount, onMount, onUnmount, Batch })
 
 if (typeof window !== "undefined") {
   Object.assign(window, SigPro)
@@ -490,5 +514,5 @@ if (typeof window !== "undefined") {
     .split(" ").forEach(t => window[t[0].toUpperCase() + t.slice(1)] = (p, c) => SigPro.Tag(t, p, c))
 }
 
-export { $, Watch, Tag, Render, If, For, Router, Mount, onMount, onUnmount, set }
+export { $, $$, Watch, Tag, Render, If, For, Router, Mount, onMount, onUnmount, Batch }
 export default SigPro