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<html><head> <title>数组去重</title></head><body><script type="text/javascript"> var projectLineLis = [ {value: 1, label: "雪亮标品", $$hashKey: "067"}, {value: 2, label: "大数据", $$hashKey: "068"}, {value: 3, label: "大联动", $$hashKey: "069"}, {value: 4, label: "全科采集", $$hashKey: "06A"}, {value: 5, label: "铁路护路", $$hashKey: "06B"}, {value: 6, label: "平安中国", $$hashKey: "06C"}, {value: 7, label: "社会化服务", $$hashKey: "06D"}, {value: 1, label: "雪亮标品", $$hashKey: "06E"}, {value: 8, label: "12", $$hashKey: "06F"}, {value: 8, label: "45", $$hashKey: "06G"}, {value: 1, label: "雪亮标品", $$hashKey: "06H"}, {value: 2, label: "大数据", $$hashKey: "06I"}, {value: 3, label: "大联动", $$hashKey: "06J"},] function arrayUnique2(arr, name) { var hash = {}; return arr.reduce(function (item, next) { hash[next[name]] ? '' : hash[next[name]] = true && item.push(next); return item; }, []); } console.log(arrayUnique2(projectLineLis,'label'))</script></body></html>