Question

我想在对象中进行合并，从这个obj：

objs = {
  one: { description: "value", amount: 5, value: { description: "value desc", identifier: "some text"} },
  two: { description: "value", amount: 5, value: { description: "value desc", identifier: "some text"} }
}

进入这个对象：

objs = {
  one: { original_description: "value", amount: 5, description: "value desc", identifier: "some text" },
  two: { original_description: "value", amount: 5, description: "value desc", identifier: "some text" }
}

UPD：来自@ryeballar的解决方案正在运作，但我发现了问题，＆＃34;孩子反对＆＃34;包含与父对象相同的键名。

Answer 1

您可以使用mapValues()，并使用omit()和merge()使用value进行回调，使用省略的value返回每个对象var objs = { one: { description: "value", amount: 5, value: { identifier : "some text"} }, two: { description: "value", amount: 5, value: { identifier : "some text"} } }; var result = _.mapValues(objs, i => _(i).omit('value').merge(i.value).value()); document.write('<pre>' + JSON.stringify(result, 0, 4) + '</pre>');本身。

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.11.2/lodash.js"></script>

var objs = {
  one: { description: "value", amount: 5, value: { description: "value desc", identifier: "some text"} },
  two: { description: "value", amount: 5, value: { description: "value desc", identifier: "some text"} },
  three: { description: "value", amount: 5, value: null },
  four: { description: "value", amount: 5 }
}

function mergeFromKey(object, mergeKey, prefix) {
  return _.mapValues(object, item => 
    _(item).mapKeys((v, k) => (_.get(item[mergeKey], k)? prefix: '') + k)
    .omit(mergeKey)
    .merge(item[mergeKey])
    .value()
  );
}

var result = mergeFromKey(objs, 'value', 'original_');

document.write('<pre>' + JSON.stringify(result, 0, 4) + '</pre>');

<强>更新

为了响应您的更新，您仍然可以使用上面的原始解决方案，稍微进行一些调整，使用mapKeys()从给定前缀转换每个对象键（如果它来自合并源）

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.11.2/lodash.js"></script>

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lodash：深入合并对象

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