ios - 如何像stack swift 5一样在数组中一个接一个地添加/插入元素

Question

我从 api 响应中获取字符串并存储在一个数组中。

     for customParams in custom_attributes! {
         if(customParams["attribute_code"] as! String == "small_image") 
        {
         print(customParams["value"])
         var myString = customParams["value"] as! String

         //want to add this myString in array(myArray) one after another
         var myArray :[String] = []
              print(myArray)      
        }
 }

输出:

myArray = ["myString1","myString2"......]

伙计们，我该怎么做？我还是 swift 的新手...提前致谢!

"id": 6,
"products": {
"items": [{
"status": 1,
"custom_attributes": [
{
{
"attribute_code": "small_image",
"value": "small_image"
},
{
"attribute_code": "meta_keyword",
"value": "meta_keyword"
}]},
{
"status": 1,
"custom_attributes": [
{
{
"attribute_code": "small_image",
"value": "small_image"
},
{
"attribute_code": "meta_keyword",
"value": "meta_keyword"
}
]}]}}]

想要获取 customParams["attribute_code"] == small_image

Answer 1

您需要先遍历 items 数组，因为它在 json 中，还在 for 循环外声明 myArray 并开始在 myArray 内附加 myString，如下所示:

var myArray :[String] = []
for custom_attributes! in items { // items is the json items array
    for customParams in custom_attributes! {
        if(customParams["attribute_code"] as! String == "small_image") 
             {
             print(customParams["value"])
             var myString = customParams["value"] as! String
             myArray.append(myString)

         }
     }
 }