如何在反應js中將字符串數組轉換為字符串列表

Question

reactjs中如何將字符串添加到列表中。 示例代碼：

const value1="Book";
const value2="Pen";
const value3="Note";

const arrayValue=[];
arrayValue.push(value1);
arrayValue.push(value2);
arrayValue.push(value3);
console.log(arrayValue);

Output is : ["Book","Pen","Note"];
expected output is : object:{[0]."Book",[1]."Pen",[2]."Note"}

Answer 1

您可以制作一個 object 而不是這樣的數組

const arrayValue={};
arrayValue['1'] = value1;
// Same for the other values

Answer 2

const value1="Book";
const value2="Pen";
const value3="Note";

const arrayValue=[];
arrayValue.push(value1);
arrayValue.push(value2);
arrayValue.push(value3);
console.log(arrayValue);
const newObj = {}
for (let i = 0; i < arrayValue.length; i++) {
  newObj[i] = arrayValue[i]
}
console.log(newObj)

這是記錄的內容

["Book", "Pen", "Note"]
[object Object] {
  0: "Book",
  1: "Pen",
  2: "Note"
}

const value2="Pen";
const value3="Note";

const arrayValue=[];
arrayValue.push(value1);
arrayValue.push(value2);
arrayValue.push(value3);
console.log(arrayValue);
const newObj = {}
for (let i = 0; i < arrayValue.length; i++) {
  let string = `[${i.toString()}]`
  newObj[string] = arrayValue[i]
}
console.log(newObj)

這是記錄的

["Book", "Pen", "Note"]
[object Object] {
  [0]: "Book",
  [1]: "Pen",
  [2]: "Note"
}

Answer 3

var obj = {}
for (var i in arrayValue){
    obj[i] = arrayValue[i];
}

console.log(obj)

Answer 4

您的“預期輸出”是 object。 這與反應無關...

嘗試這個：

 list = ["1", "2", "3"]; object = {}; for(x=0; x < list.length; x++){ object[x] = list[x]; } console.log(object)