Merge pull request #5 from storkyeh/master

fix filter issue

Author: njleonzhang

example/App.vue

@@ -185,7 +185,7 @@ export default {
     getCheckFilterDef() {
       return {
         width: 14,
-        prop: 'state_code',
+        props: 'state_code',
         def: [{
           'code': 'created',
           'name': '未处理'

src/components/DataTables.vue

@@ -199,7 +199,7 @@ export default {
 
       this.filters.forEach((filter) => {
         let val = filter.val
-        if (!val) {
+        if (!val || val.length === 0) {
           return true
         }
 
@@ -217,7 +217,7 @@ export default {
             // filter value is list, at the same time not empty
             defaultFilterFunction = function(el, filter) {
               return filter.props.some(prop => {
-                return filter.value.indexOf(el[prop]) > -1
+                return filter.val.indexOf(el[prop]) > -1
               })
             }
           }