Vue如何实现fromData格式转化成数组

Posted 2021-08-31 龖龖龖

fromData转数组进行参数传递

//要传递的数据类型：
//【第一种】：
var arr=[
    {a:"1",b:"s",c:"6"},
    {a:"1",b:"s",c:"6"},
    {a:"1",b:"s",c:"6"}
];
//【第二种】：
var arrs = [
    ["v1","v2","v1"],
    ["v1","v2","v1"],
    ["v1","v2","v1"]
];
 
//正常直接 formData.append("name", val) 传递，后台接收：
 
第一种："arr" => "[object Object],[object Object],[object Object]"
第二种："arrs" => "v1,v2,v1,v1,v2,v1,v1,v2,v1"
 
//这些都不是我们想要的，那我们应该怎么处理呢？很简单用JSON.stringify转化一下即可：
 
formData.append("arr", JSON.stringify(arr));
formData.append("arrs", JSON.stringify(arrs));
 
//这样就能得到我们想要的数据了
 
第一种："arr" => "[{"a":"1","b":"s","c":"6"},{"a":"1","b":"s","c":"6"},{"a":"1","b":"s","c":"6"}]"
第二种："arrs" => "[["v1","v2","v1"],["v1","v2","v1"],["v1","v2","v1"]]"