如何使用包含增量split []的变量编写For循环以最小化JS代码？

Question

希望我以正确的方式提出这个问题，我对JavaScript中的For Loops完全陌生...

我必须为此编写一个For循环：

var file = '/home/xxxxx/xxxx/xxxx/xxxx';
var obj = result.rows;
var split = JSON.stringify(obj).split(',');
var date1rpl = split[0].replace(/\"/g,"");
var date1og = date1rpl.slice(2,100);
var date1 = splitabc(date1og);
var usr1 = split[1].replace(/\"/g,"");
var session1 = split[2].replace(/("|])/g,"");
var date2rpl = split[3].replace(/\"/g,"");
var date2og = date2rpl.slice(1,100);
var date2 = splitabc(date2og);
var session2 = split[5].replace(/("|])/g,"");
var usr2 = split[4].replace(/\"/g,"");
var date3rpl = split[6].replace(/\"/g,"");
var date3og = date3rpl.slice(1,100);
var date3 = splitabc(date3og);
var session3 = split[8].replace(/("|])/g,"");
var usr3 = split[7].replace(/\"/g,"");
var date4rpl = split[9].replace(/\"/g,"");
var date4og = date4rpl.slice(1,100);
var date4 = splitabc(date4og);
var session4 = split[11].replace(/("|])/g,"");
var usr4 = split[10].replace(/\"/g,"");
var date5rpl = split[12].replace(/\"/g,"");
var date5og = date5rpl.slice(1,100);
var date5 = splitabc(date5og);
var session5 = split[14].replace(/("|])/g,"");
var usr5 = split[13].replace(/\"/g,"");
jsonfile.writeFile(file, obj);

对于每个用户，会话，date1rpl，split []似乎将增加+3。 如何将其包含在for循环中，该循环将遍历变量，因此我可以只将daterpl，dateog，date，usr和session作为变量，而不必对每个变量进行编号并重复它？

var date1rpl = split [0] .replace（/ \\“ / g，”“）; var date1og = date1rpl.slice（2,100）; var date1 = splitabc（date1og）; var usr1 = split [1] .replace（/ \\ “/G，””）; var session1 = split [2] .replace（/（“ |]）/ g，”“）;

Answer 1

因此，您想遍历拆分数组中的所有项目并对其进行一些处理，然后保存更新的版本以供以后使用。

您可以使用For循环

var dates = [];
var split = JSON.stringify(obj).split(',');
for(var i = 0; i< split.length; i++){
   var dateRpl = split[i].replace(/\"/g,"");
   var dateOG = dateRpl.slice(2,100);
   dates.push(splitabc(dateOG));
}

// dates is now an array of all the processed dates

或者您可以在数组上使用forEach方法

var dates = [];
var split = JSON.stringify(obj).split(',');
split.forEach(function(string) {
   var dateRpl = string.replace(/\"/g,"");
   var dateOG = dateRpl.slice(2,100);
   dates.push(splitabc(dateOG));
});

// dates is now an array of all the processed dates