js 拒绝 if ... else

先看常规的条件语句的写法：

    function getInitData(columnType){        if(columnType == "baiduZhidaoNum"){            return {searchText:"", href:""};        }else if(columnType == "weBo"){            return {weiboType:"xinlangWeibo",weiboUrl:""};        }else if(columnType == "APPDownload"){            return {downLoadType:"templateSetting"};        }else if(columnType == "contactPhone"){            return {phoneArray:""};        }else if(columnType == "inlineMap"){            return {address:"", latitude:"", longitude:""};        }else if(columnType == "weStore"){            return {weiStoreType: "taobaoStore", storeWebAddress:""};        }else if(columnType == "weRecruit"){            return {jobType:"weijob_zhaopinUrl", content:"", weijobUrl:""};        }    }

拒绝if else之后大概是这样：

/*    这里使用了ES6的Arrow Function,    var fun = ()=>({searchText:"", href:""})    等价于：   var fun = function(){        return {searchText:"", href:""}    }    或：    var fun = (arg1, arg2)=>({searchText: arg1, href:arg2})    等价于：   var fun = function(arg1, arg2){        return {searchText: arg1, href:arg2}    }*/function getInitJumpPage(columnType){        return {                "baiduZhidaoNum" : ()=>({searchText:"", href:""}),                "weBo" : ()=>({weiboType:"xinlangWeibo",weiboUrl:""}),                "APPDownload" : ()=>({downLoadType:"templateSetting"}),                "contactPhone" : ()=>({phoneArray:""}),                "inlineMap" : ()=>({address:"", latitude:"", longitude:""}),                "weStore" : ()=>({weiStoreType: "taobaoStore", storeWebAddress:""}),                "weRecruit" : ()=>({jobType:"weijob_zhaopinUrl", content:"", weijobUrl:""}),            }[columnType]();

关键字：JavaScript, if语句

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