JavaScript中将对象数组中的某个属性值，批量替换成另一个数值

  var stooges = [
    { label: 1, value: 1, placeCode: ‘sh‘, stock_code: 40 },
    { label: 1, value: 1, placeCode: ‘sh‘, stock_code: 50 },
    { label: 1, value: 1, placeCode: ‘sz‘, stock_code: 60, status: 1 },
    { label: 1, value: 1, placeCode: ‘sz‘, stock_code: 39, status: 1 }
  ]

  var stooges = [
    { label: 1, value: 1, placeCode: ‘sh‘, stock_code: 40 },
    { label: 1, value: 1, placeCode: ‘sh‘, stock_code: 50 },
    { label: 1, value: 1, placeCode: ‘sz‘, stock_code: 60, status: 1 },
    { label: 1, value: 1, placeCode: ‘sz‘, stock_code: 39, status: 1 }
  ]

  for (var i = 0; i < stooges.length; i++) {
    var item = stooges[i];
    if (item.placeCode == "sh") {
      item.placeCode = "沪";
    }
    if (item.placeCode == "sz") {
      item.placeCode = "深";
    }
  }

  for (var i = 0; i < stooges.length; i++) {
    stooges[i].placeCode === ‘sh‘ ? stooges[i].placeCode = ‘沪‘ : stooges[i].placeCode = ‘深‘
  }

  var maps = new Map([[‘sh‘, ‘沪‘], [‘sz‘, ‘深圳‘]]);
  stooges = stooges.map(element => {
    element.placeCode = maps.get(element.placeCode);
    return element;
  });

  var toStr = {
    sh: ‘沪‘,
    sz: ‘深‘
  };
  stooges.map(function (value) {
    var placeCode = value.placeCode;
    value.placeCode = toStr[placeCode] ? toStr[placeCode] : placeCode;
    return value;
  });