diff --git a/packages/moon/dist/moon.js b/packages/moon/dist/moon.js
index 67e07e63..04d31271 100644
--- a/packages/moon/dist/moon.js
+++ b/packages/moon/dist/moon.js
@@ -1104,11 +1104,11 @@
 						break;
 
 					case "dataset":
-						delete element.dataset[key];
+						delete element.dataset[setKey];
 						break;
 
 					default:
-						element.style[key] = "";
+						element.style[setKey] = "";
 				}
 			}
 		}
@@ -1536,7 +1536,7 @@
 				case patchTypes.replaceNode:
 					{
 						// Replace an old element with a new one.
-						patch.elementParent.replaceChild(patch.elementOld, patch.elementNew);
+						patch.elementParent.replaceChild(patch.elementNew, patch.elementOld);
 						break;
 					}
 
diff --git a/packages/moon/dist/moon.min.js b/packages/moon/dist/moon.min.js
index 9a1c451e..caac5eb8 100644
--- a/packages/moon/dist/moon.min.js
+++ b/packages/moon/dist/moon.min.js
@@ -4,4 +4,4 @@
  * Released under the MIT License
  * https://kbrsh.github.io/moon
  */
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"+o+"=[];"+i,node:"m("+P.element+","+s+","+d+","+o+")",isStatic:!1,variable:t}}(e,n,r,i);l="text"===o?P.text:o[0]===o[0].toLowerCase()?P.element:P.component;var s=e.attributes,d="",c="{",f="",p="";for(var m in s){var h=s[m];"children"===m?(h.isStatic||(v=!1),f=h.value):(h.isStatic||(u=!1),c+=p+'"'+m+'":'+h.value,p=",")}if(c+="}",void 0===s.children){var y=e.children,b=[];f+="[",p="";for(var g=0;g<y.length;g++){var k=$(y[g],e,g,n,r,i);k.isStatic||(v=!1),n=k.variable,b.push(k)}for(var w=0;w<b.length;w++){var D=b[w];v||!D.isStatic?(d+=D.prelude,f+=p+D.node):f+=p+x(D.prelude,D.node,r,i),p=","}f+="]"}return u&&!v?c=x("",c,r,i):!u&&v&&(f=x("",f,r,i)),{prelude:d,node:"m("+l+',"'+o+'",'+c+","+f+")",isStatic:u&&v,variable:n}}function l(e){var t=[],a=$(e,null,0,0,t,{}),n=a.prelude,r=a.node;return a.isStatic?"if(ms[0]===undefined){"+n+"ms[0]="+r+";}return ms[0];":"if(ms[0]===undefined){"+t.join("")+"}"+n+"return "+r+";"}function p(e){return l(i(a(e)))}function m(e,t,a){if("ariaset"===t)for(var n in a)e.setAttribute("aria-"+n,a[n]);else{var r=e[t];for(var i in a)r[i]=a[i]}}function o(e,t,a,n){for(var r in a)if(!(r in n))switch(t){case"ariaset":e.removeAttribute("aria-"+r);break;case"dataset":delete e.dataset[r];break;default:e.style[r]=""}}var F,h={},u={},y=[],b={};var L=[],R={appendNode:0,removeNode:1,replaceNode:2,setDataEvent:3,updateDataProperty:4,updateDataText:5,updateDataEvent:6,updateDataSet:7,removeDataProperty:8,removeDataEvent:9,removeDataSet:10};function _(){}function z(e){for(;e.type===P.component;){var t=e.name,a=h[t](n,e.data,e.children,b[t]);e.type=a.type,e.name=a.name,e.data=a.data,e.children=a.children}}function T(e){var t,a=[];if(e.type===P.text)t=document.createTextNode(e.data[""]);else{t=document.createElement(e.name);for(var n=e.children,r=0;r<n.length;r++){var i=n[r];z(i);var l=T(i);a.push(l),t.appendChild(l.element)}var o=e.data;for(var u in o){var v=o[u];if(64===u.charCodeAt(0)){var s=t.MoonEvent;null===s&&(s=t.MoonEvent=new _),s[u]=v,t.addEventListener(u.slice(1),s)}else"ariaset"===u||"dataset"===u||"style"===u?m(t,u,v):t[u]=v}}return new d(e,t,a)}function Z(e){for(var t=0;t<e.length;t++){var a=e[t];switch(a.type){case R.appendNode:a.elementParent.appendChild(a.element);break;case R.removeNode:a.elementParent.removeChild(a.element);break;case R.replaceNode:a.elementParent.replaceChild(a.elementNew,a.elementOld);break;case R.setDataEvent:var n=a.elementMoonEvent,r=a.key;n[r]=a.value,a.element.addEventListener(r.slice(1),n);break;case R.updateDataProperty:a.element[a.key]=a.value;break;case R.updateDataText:a.element.data=a.text;break;case R.updateDataEvent:a.elementMoonEvent[a.key]=a.value;break;case R.updateDataSet:m(a.element,a.key,a.value);break;case R.removeDataProperty:a.element.removeAttribute(a.key);break;case R.removeDataEvent:var i=a.elementMoonEvent,l=a.key;i[l]=void 0,a.element.removeEventListener(l.slice(1),i);break;case R.removeDataSet:o(a.element,a.key,a.value,a.exclude)}}}function j(){var e=L[0];for(var t in e)u[t]=e[t];!function e(t,a,n){for(;;){var r=t.pop(),i=r.node,l=a.pop();if(z(l),i!==l)if(r.node=l,i.type!==l.type||i.name!==l.name){var o=r.element,u=T(l),v=u.element;r.element=v,r.children=u.children,n.push({type:R.replaceNode,elementOld:o,elementNew:v,elementParent:o.parentNode})}else if(i.type===P.text){var s=l.data[""];i.data[""]!==s&&n.push({type:R.updateDataText,element:r.element,text:s})}else{var d=r.element,c=i.data,f=l.data;if(c!==f){for(var p in f){var m=c[p],h=f[p];if(m!==h)if(64===p.charCodeAt(0)){var y=d.MoonEvent;null===y&&(y=d.MoonEvent=new _),void 0===y[p]?n.push({type:R.setDataEvent,element:d,elementMoonEvent:y,key:p,value:h}):n.push({type:R.updateDataEvent,elementMoonEvent:y,key:p,value:h})}else"ariaset"===p||"dataset"===p||"style"===p?(n.push({type:R.updateDataSet,element:d,key:p,value:h}),void 0!==m&&n.push({type:R.removeDataSet,element:d,key:p,value:m,exclude:h})):n.push({type:R.updateDataProperty,element:d,key:p,value:h})}for(var b in c)b in f||(64===b.charCodeAt(0)?n.push({type:R.removeDataEvent,element:d,elementMoonEvent:d.MoonEvent,key:b}):"ariaset"===b||"dataset"===b||"style"===b?n.push({type:R.removeDataSet,element:d,key:b,value:c[b],exclude:{}}):n.push({type:R.removeDataProperty,element:d,key:b}))}var g=r.children,k=l.children;if(g!==k){var w=g.length,D=k.length;if(w===D)for(var S=0;S<w;S++)t.push(g[S]),a.push(k[S]);else if(D<w){for(var x=0;x<D;x++)t.push(g[x]),a.push(k[x]);for(var E=D;E<w;E++)n.push({type:R.removeNode,element:g.pop().element,elementParent:d})}else{for(var N=0;N<w;N++)t.push(g[N]),a.push(k[N]);for(var A=w;A<D;A++){var M=k[A];z(M);var C=T(M);g.push(C),n.push({type:R.appendNode,element:C.element,elementParent:d})}}}}if(0===t.length){Z(n),L.shift(),0!==L.length&&(16<=Date.now()-F?requestAnimationFrame(function(){F=Date.now(),j()}):j());break}if(16<=Date.now()-F){requestAnimationFrame(function(){F=Date.now(),e(t,a,n)});break}}}([s],[h.Root(n,u,y,b.Root)],[])}function g(e){L.push(e),1===L.length&&requestAnimationFrame(function(){F=Date.now(),j()})}function e(e){var t=S(e.name,"Root"),i=e.data,l=e.view;if("string"==typeof l&&(l=new Function("m","md","mc","ms",p(l))),b[t]=[],"Root"===t){var a=e.root;"string"==typeof a&&(a=document.querySelector(a)),h.Root=l;for(var n=a.attributes,r={},o=0;o<n.length;o++){var u=n[o];r[u.name]=u.value}!function(e){s=e}(new d(new v(P.element,a.tagName.toLowerCase(),r,[]),a,[])),g(S(i,{}))}else h[t]=void 0===i?l:function(e,t,a,n){for(var r in i)r in t||(t[r]=i[r]);return l(e,t,a,n)}}return _.prototype.handleEvent=function(e){var t=this["@"+e.type];t[0](e,t[1],t[2])},Node.prototype.MoonEvent=null,e.lex=a,e.parse=i,e.generate=l,e.compile=p,e.components=h,e.get=u,e.set=g,e});
\ No newline at end of file
diff --git a/packages/moon/src/executor/executor.js b/packages/moon/src/executor/executor.js
index 8de93da6..7f9bc6b4 100644
--- a/packages/moon/src/executor/executor.js
+++ b/packages/moon/src/executor/executor.js
@@ -419,7 +419,7 @@ function executePatch(patches) {
 
 			case patchTypes.replaceNode: {
 				// Replace an old element with a new one.
-				patch.elementParent.replaceChild(patch.elementOld, patch.elementNew);
+				patch.elementParent.replaceChild(patch.elementNew, patch.elementOld);
 
 				break;
 			}
diff --git a/packages/moon/src/executor/util/util.js b/packages/moon/src/executor/util/util.js
index 06c061dd..9f6e4132 100644
--- a/packages/moon/src/executor/util/util.js
+++ b/packages/moon/src/executor/util/util.js
@@ -38,10 +38,10 @@ export function removeDataSet(element, key, value, exclude) {
 					element.removeAttribute("aria-" + setKey);
 					break;
 				case "dataset":
-					delete element.dataset[key];
+					delete element.dataset[setKey];
 					break;
 				default:
-					element.style[key] = "";
+					element.style[setKey] = "";
 			}
 		}
 	}
diff --git a/packages/moon/test/executor/executor.test.js b/packages/moon/test/executor/executor.test.js
index bd5ee471..d8190a26 100644
--- a/packages/moon/test/executor/executor.test.js
+++ b/packages/moon/test/executor/executor.test.js
@@ -43,7 +43,7 @@ function verify(list) {
 		const item = list[i];
 		const element = span.childNodes[i];
 
-		if (i % 2 === 0) {
+		if (item % 2 === 0) {
 			expect(element.tagName).toEqual("P");
 			expect(element.lang).toEqual("en");
 			expect(element.className).toEqual(item.toString());
@@ -67,7 +67,7 @@ function verify(list) {
 			expect(eventResult.children).toEqual([]);
 
 			eventResult = undefined;
-		} else if (i % 3 === 0) {
+		} else if (item % 3 === 0) {
 			expect(element.tagName).toEqual("P");
 			expect(element.lang).toEqual("en");
 			expect(element.className).toEqual(item.toString());
@@ -105,9 +105,14 @@ function verify(list) {
 			expect(element.style.color).toEqual("");
 			expect(element.style.background).toEqual("");
 			expect(element.style.fontSize).toEqual("");
-			expect(element.MoonEvent["@click"]).toBeUndefined();
 			expect(element.textContent).toEqual(`${item}${i}`);
 
+			if (element.MoonEvent) {
+				expect(element.MoonEvent["@click"]).toBeUndefined();
+			} else {
+				expect(element.MoonEvent).toBeNull();
+			}
+
 			element.click();
 
 			expect(eventResult).toBeUndefined();
@@ -126,6 +131,35 @@ function assertExecute(before, after) {
 	verify(after);
 }
 
-test("[]", () => {
-	assertExecute([0], [0]);
-});
+// Replace
+for (let i of [2, 3, 5]) {
+	for (let j of [2, 3, 5]) {
+		test(`[${i}] -> [${j}]`, () => {
+			assertExecute([i], [j]);
+		});
+	}
+}
+
+// Append
+for (let i of [2, 3, 5]) {
+	for (let j of [2, 3, 5]) {
+		const before = [i];
+		const after = [j, j + 1, j + 2, j + 3, j * 2];
+
+		test(`[${before.toString()}] -> [${after.toString()}]`, () => {
+			assertExecute(before, after);
+		});
+	}
+}
+
+// Remove
+for (let i of [2, 3, 5]) {
+	for (let j of [2, 3, 5]) {
+		const before = [i, i + 1, i + 2, i + 3, i * 2];
+		const after = [j];
+
+		test(`[${before.toString()}] -> [${after.toString()}]`, () => {
+			assertExecute(before, after);
+		});
+	}
+}