javascript中的lambda表達式

時間 2020-11-30

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<!DOCTYPE html>
<html>
<head>
</head>
<body>
    <script>
        var nubList = [ { expressId: "00001", //快遞單號ID
                    expressNum: "數據1" }, { expressId: "00002", //快遞單號ID
                    expressNum: "數據2" }, { expressId: "00003", //快遞單號ID
                    expressNum: "數據3" }, { expressId: "00004", //快遞單號ID
                    expressNum: "數據4" } ]; var nub = nubList.find(nub => nub.expressId == "00002"); console.log(nub.expressId); var nub1 = nubList.filter(nub => nub.expressId == "00002"); console.log(nub1[0].expressId); </script>
</body>
</html>