javascript-映射带有奇怪json字段的json对象,使用lodash按数字索引

我正在尝试从服务器解析json响应.对于服务器端,我无能为力,因为无法在任何时候更改它.

他们的json响应如下所示：

{
    prop[1][foo]: "foo number 1",
    prop[1][bar]: "bar number 1",
    prop[1][bazz]: "bazz number 1",
    prop[2][foo]: "foo number 2",
    prop[2][bar]: "bar number 2",
    prop[2][bazz]: "bazz number 2"
}

现在我希望它像这样：

{
    props: [
        {foo: "foo number 1", bar: "bar number 1", bazz: "bazz number 1"},
        {foo: "foo number 2", bar: "bar number 2", bazz: "bazz number 2"}
    ]
}

我该怎么做,我不知道如何迭代和设置.

我的尝试：

var temp = [];

var regExp = /\[([^)])\]/;
var matches;
_.each(element, function(value, key) {
    if (key.indexOf('foo') >= 0) {
        matches = regExp.exec(key);
        temp[matches[1]] = value;
    }

});

解决方法:

您可以使用_.set(object, path, value),它将评估为响应对象中的每个值设置的路径.

DEMO

Java脚本

var data = {
    "prop[1][foo]": "foo number 1",
    "prop[1][bar]": "bar number 1",
    "prop[1][bazz]": "bazz number 1",
    "prop[2][foo]": "foo number 2",
    "prop[2][bar]": "bar number 2",
    "prop[2][bazz]": "bazz number 2"
};

function evaluate(data) {
  var newData = {};
  _.each(data, function(value, key) {
    _.set(newData, key, value);
  });
  return definedItemsOnly(newData);
}

// Since the resulting value of the given data set above
// doesn't have prop[0] then this function below 
// will provide you the means of removing any potential
// undefined values in an array or possibly undefined 
// key values in an object.
function definedItemsOnly(item) {
  var isDefined = _.negate(_.isUndefined);
  if(_.isArray(item)) {
    return _.filter(item, isDefined);
  } else if(_.isObject(item)) {
    return _(item).pick(isDefined).mapValues(definedItemsOnly).value();
  }
  return item;
}

console.log(evaluate(data));

如果您希望_.each回调以更加组合的形式,则可以像下面这样更改validate()函数：

function evaluate(data) {
  var newData = {};
  _.each(data, _.rearg(_.partial(_.set, newData), [1, 0]));
  return definedItemsOnly(newData);
}

标签：underscore-js,lodash,arrays,json,javascript
来源： https://codeday.me/bug/20191120/2041662.html