使用lodash重新映射属性名称和值

本文介绍了使用lodash重新映射属性名称和值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有这个数组：

aItems = [{
    "PropertyA": "apple",
    "PropertyB": "banana",
    "PropertyC": "dog",
    "PropertyD": "hotdog",
    "PropertyE": "coldcat",
    "PropertyF": "Y",
    "PropertyG": "N"
},
...,
{
    "PropertyA": "this",
    "PropertyB": "is",
    "PropertyC": "json",
    "PropertyD": "code",
    "PropertyE": "wow",
    "PropertyF": "N",
    "PropertyG": "N"
}]

我想用 lodash 来获得这个结果：

I would like use lodash to obtain this result:

aItems = [{
    "propertyA": "apple",
    "propertyB": "banana",
    "propertyC": "dog",
    "propertyD": "hotdog",
    "propertyE": "coldcat",
    "propertyNEW": true,
    "propertyG": false
},
...,
{
    "propertyA": "this",
    "propertyB": "is",
    "propertyC": "json",
    "propertyD": "code",
    "propertyE": "wow",
    "propertyNEW": false,
    "propertyG": false
}]

我想用其他名称映射每个属性名称，并更改某些特定属性的值。
我可以使用 lodash 吗？

I want map each property name with other names and change the value for some specific properties.Can I do it using lodash?

推荐答案

创建新旧映射密钥，像这样

Create a mapping of old and new keys, like this

var keyMapping = {'PropertyA': 'propertyA', ..., 'PropertyF': 'propertyNEW'}

以及旧值和新值的映射，例如

and also a mapping of old and new values, like this

var valueMapping = {'Y': true, 'F': false}

然后使用和，你可以变换对象，就像这样

And then using _.map and _.transform, you can transform the object, like this

var result = _.map(allItems, function(currentObject) {
    return _.transform(currentObject, function(result, value, key) {
        if (key === 'PropertyF' || key === 'PropertyG') {
            value = valueMapping(value);
        }
        result[keyMapping[key]] = value;
    });
});

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