[游戏开发]js字符换转数组

let arrStr = '{"2元": "200", "3元": "300"}';
  let arr = [];
  
  for(let i in JSON.parse(arrStr)){
   	arr.push({ [i] :JSON.parse(arrStr)[i]})
  }
  },

      var optionlist = []
        /**var valueData = list[i].valueData; */
        
        var obj = {"1元":"100";"2元":"200";"4元":"400"}
        for (let i in obj) {
            var k = {};
            k[i] = valueData[i];
            optionlist.push(k);
        }

        console.log(optionlist);
        __data__.valueOptions = optionlist;

/** 交换位置上移下移*/
var swapItems = function (arr, index1, index2) {
    arr[index1] = arr.splice(index2, 1, arr[index1])[0]
    return arr
}
var arr = [1, 2, 3];
var newArr = [];
function upData(arr, index) {
    if (this.arr.length > 1 && index !== 0) {
        newArr = swapItems(arr, index, index - 1)
    };
}
function downData(arr, index) {
    if (this.arr.length > 1 && index !== (this.arr.length - 1)) {
        newArr = swapItems(this.arr, index, index + 1)
    }
}
alert(upData(arr, 1));

笔记