数组对象去重处理（自定义根据哪个键名来去重）
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <title>数组去重</title> 5 </head> 6 <body> 7 <script type="text/javascript"> 8 var projectLineLis = [ 9 {value: 1, label: "雪亮标品", $$hashKey: "067"}, 10 {value: 2, label: "大数据", $$hashKey: "068"}, 11 {value: 3, label: "大联动", $$hashKey: "069"}, 12 {value: 4, label: "全科采集", $$hashKey: "06A"}, 13 {value: 5, label: "铁路护路", $$hashKey: "06B"}, 14 {value: 6, label: "平安中国", $$hashKey: "06C"}, 15 {value: 7, label: "社会化服务", $$hashKey: "06D"}, 16 {value: 1, label: "雪亮标品", $$hashKey: "06E"}, 17 {value: 8, label: "12", $$hashKey: "06F"}, 18 {value: 8, label: "45", $$hashKey: "06G"}, 19 {value: 1, label: "雪亮标品", $$hashKey: "06H"}, 20 {value: 2, label: "大数据", $$hashKey: "06I"}, 21 {value: 3, label: "大联动", $$hashKey: "06J"}, 22 ] 23 function arrayUnique2(arr, name) { 24 var hash = {}; 25 return arr.reduce(function (item, next) { 26 hash[next[name]] ? '' : hash[next[name]] = true && item.push(next); 27 return item; 28 }, []); 29 } 30 console.log(arrayUnique2(projectLineLis,'label')) 31 </script> 32 </body> 33 </html>
效果如下所示：
