improve code style

components/popconfirm/index.jsx

@@ -6,8 +6,7 @@ import getPlacements from '../popover/placements';
 
 const placements = getPlacements();
 const prefixCls = 'ant-popover';
-const noop = function () {
-};
+const noop = () => {};
 
 export default class Popconfirm extends React.Component {
   static defaultProps = {
@@ -17,8 +16,7 @@ export default class Popconfirm extends React.Component {
     overlayStyle: {},
     onConfirm: noop,
     onCancel: noop,
-    onVisibleChange() {
-    },
+    onVisibleChange: noop,
   }
 
   static contextTypes = {

components/tooltip/demo/basic.md

@@ -14,4 +14,3 @@ ReactDOM.render(
   </Tooltip>
 , mountNode);
 ````
-

components/tooltip/index.jsx

@@ -12,13 +12,13 @@ export default class Tooltip extends React.Component {
     placement: 'top',
     transitionName: 'zoom-big',
     mouseEnterDelay: 0.1,
-    mouseLeaveDelay: 0.1
+    mouseLeaveDelay: 0.1,
   }
 
   constructor(props) {
     super(props);
     this.state = {
-      visible: false
+      visible: false,
     };
   }
 
@@ -26,30 +26,35 @@ export default class Tooltip extends React.Component {
     this.setState({ visible });
   }
 
+  // 动态设置动画点
   onPopupAlign = (domNode, align) => {
-    // 当前返回的位置;
-    let placement;
-    Object.keys(placements).forEach(key => {
-      const item = placements[key];
-      if (item.points[0] === align.points[0] && item.points[1] === align.points[1]) {
-        placement = key;
+    // 当前返回的位置
+    const placement = Object.keys(placements).filter(
+      key => (
+        placements[key].points[0] === align.points[0] &&
+        placements[key].points[1] === align.points[1]
+      )
+    )[0];
+    if (!placement) {
+      return;
     }
-    });
-    // 当前坐标;
+    // 根据当前坐标设置动画点
     const rect = domNode.getBoundingClientRect();
-    let top = '50%';
-    let left = '50%';
+    const transformOrigin = {
+      top: '50%',
+      left: '50%',
+    };
     if (placement.indexOf('top') >= 0 || placement.indexOf('Bottom') >= 0) {
-      top = `${rect.height - align.offset[1]}px`;
+      transformOrigin.top = `${rect.height - align.offset[1]}px`;
     } else if (placement.indexOf('Top') >= 0 || placement.indexOf('bottom') >= 0) {
-      top = `${-align.offset[1]}px`;
+      transformOrigin.top = `${-align.offset[1]}px`;
     }
     if (placement.indexOf('left') >= 0 || placement.indexOf('Right') >= 0) {
-      left = `${rect.width - align.offset[0]}px`;
+      transformOrigin.left = `${rect.width - align.offset[0]}px`;
     } else if (placement.indexOf('right') >= 0 || placement.indexOf('Left') >= 0) {
-      left = `${-align.offset[0]}px`;
+      transformOrigin.left = `${-align.offset[0]}px`;
     }
-    domNode.style.transformOrigin = `${left} ${top}`;
+    domNode.style.transformOrigin = `${transformOrigin.left} ${transformOrigin.top}`;
   };
 
   render() {