diff --git a/packages/omi-mobx/index.js b/packages/omi-mobx/index.js
index eb4cf04f3..54404a0c1 100644
--- a/packages/omi-mobx/index.js
+++ b/packages/omi-mobx/index.js
@@ -20,58 +20,58 @@ import { options } from "omi";
 /*
  * @see https://developers.google.com/web/updates/2015/08/using-requestidlecallback
  */
-window.requestIdleCallback = window.requestIdleCallback ||
-    function (cb) {
-        return setTimeout(function () {
-            var start = Date.now()
-            cb({
-                didTimeout: false,
-                timeRemaining: function () {
-                    return Math.max(0, 50 - (Date.now() - start))
-                }
-            })
-        }, 1)
-    }
+window.requestIdleCallback =
+	window.requestIdleCallback ||
+	function(cb) {
+		return setTimeout(function() {
+			var start = Date.now();
+			cb({
+				didTimeout: false,
+				timeRemaining: function() {
+					return Math.max(0, 50 - (Date.now() - start));
+				}
+			});
+		}, 1);
+	};
 
-window.cancelIdleCallback = window.cancelIdleCallback ||
-    function (id) {
-        clearTimeout(id)
-    }
+window.cancelIdleCallback =
+	window.cancelIdleCallback ||
+	function(id) {
+		clearTimeout(id);
+	};
 
+options.afterInstall = function(ele) {
+	if (ele.constructor.observe) {
+		oba(ele.data, ele);
+	}
+};
 
-options.afterInstall = function (ele) {
-    if (ele.constructor.observe) {
-        oba(ele.data, ele)
-    }
-}
-
-let idleId = null
-const updateList = []
+let idleId = null;
+const updateList = [];
 
 function oba(data, ele) {
-    const o = observable(data)
+	const o = observable(data);
 
-    autorun(() => {
-        JSON.stringify(o)
-        if (ele._isInstalled) {
-            updateList.push(ele)
-            cancelIdleCallback(idleId)
-            idleId = requestIdleCallback(backgroundTask)
+	autorun(() => {
+		JSON.stringify(o);
+		if (ele._isInstalled) {
+			updateList.push(ele);
+			cancelIdleCallback(idleId);
+			idleId = requestIdleCallback(backgroundTask);
+		}
+	});
 
-        }
-    })
-
-    ele.data = o
+	ele.data = o;
 }
 
 function backgroundTask(deadline) {
-    while (deadline.timeRemaining() > 0 && updateList.length > 0) {
-        updateList.shift().update()
-    }
+	while (deadline.timeRemaining() > 0 && updateList.length > 0) {
+		updateList.shift().update();
+	}
 
-    if (updateList.length > 0) {
-        idleId = requestIdleCallback(backgroundTask);
-    }
+	if (updateList.length > 0) {
+		idleId = requestIdleCallback(backgroundTask);
+	}
 }
 
 function observe(target) {
diff --git a/packages/omi/examples/mobx/omi-mobx.js b/packages/omi/examples/mobx/omi-mobx.js
index f1fe566cb..efbbd087a 100644
--- a/packages/omi/examples/mobx/omi-mobx.js
+++ b/packages/omi/examples/mobx/omi-mobx.js
@@ -1,5 +1,5 @@
-import { observable, autorun } from "mobx";
-import { options } from "../../src/omi";
+import { observable, autorun } from "mobx"
+import { options } from "../../src/omi"
 
 /*!
  * Copyright 2015 Google Inc. All rights reserved.
@@ -20,66 +20,66 @@ import { options } from "../../src/omi";
 /*
  * @see https://developers.google.com/web/updates/2015/08/using-requestidlecallback
  */
-window.requestIdleCallback = window.requestIdleCallback ||
-    function (cb) {
-        return setTimeout(function () {
-            var start = Date.now()
-            cb({
-                didTimeout: false,
-                timeRemaining: function () {
-                    return Math.max(0, 50 - (Date.now() - start))
-                }
-            })
-        }, 1)
-    }
+window.requestIdleCallback =
+	window.requestIdleCallback ||
+	function(cb) {
+		return setTimeout(() => {
+			let start = Date.now()
+			cb({
+				didTimeout: false,
+				timeRemaining() {
+					return Math.max(0, 50 - (Date.now() - start))
+				}
+			})
+		}, 1)
+	}
 
-window.cancelIdleCallback = window.cancelIdleCallback ||
-    function (id) {
-        clearTimeout(id)
-    }
+window.cancelIdleCallback =
+	window.cancelIdleCallback ||
+	function(id) {
+		clearTimeout(id)
+	}
 
-
-options.afterInstall = function (ele) {
-    if (ele.constructor.observe) {
-        oba(ele.data, ele)
-    }
+options.afterInstall = function(ele) {
+	if (ele.constructor.observe) {
+		oba(ele.data, ele)
+	}
 }
 
 let idleId = null
 const updateList = []
 
 function oba(data, ele) {
-    const o = observable(data)
+	const o = observable(data)
 
-    autorun(() => {
-        JSON.stringify(o)
-        if (ele._isInstalled) {
-            updateList.push(ele)
-            cancelIdleCallback(idleId)
-            idleId = requestIdleCallback(backgroundTask)
+	autorun(() => {
+		JSON.stringify(o)
+		if (ele._isInstalled) {
+			updateList.push(ele)
+			cancelIdleCallback(idleId)
+			idleId = requestIdleCallback(backgroundTask)
+		}
+	})
 
-        }
-    })
-
-    ele.data = o
+	ele.data = o
 }
 
 function backgroundTask(deadline) {
-    while (deadline.timeRemaining() > 0 && updateList.length > 0) {
-        updateList.shift().update()
-    }
+	while (deadline.timeRemaining() > 0 && updateList.length > 0) {
+		updateList.shift().update()
+	}
 
-    if (updateList.length > 0) {
-        idleId = requestIdleCallback(backgroundTask);
-    }
+	if (updateList.length > 0) {
+		idleId = requestIdleCallback(backgroundTask)
+	}
 }
 
 function observe(target) {
-	target.observe = true;
+	target.observe = true
 }
 
-export { observe };
+export { observe }
 
 export default {
 	observe
-};
+}