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diff.js
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diff.js
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// Copyright © 2019 The Things Network Foundation, The Things Industries B.V.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { observableDiff, applyChange } from 'deep-diff'
/**
* Computes the structural differences (deep) between `original` and `updated` objects
* by applying any differences (add/remove/update).
* @param {Object} original - The original object.
* @param {Object} updated - The updated version of the `original` object.
* @param {Array} exclude - A list of field names that should not be included in the
* final diff.
* @returns {Object} - A new object representing the structural differences between
* `original` and `updated`.
*/
export default function(original, updated, exclude = []) {
const result = {}
observableDiff(original, updated, function(d) {
const entry = d.path[d.path.length - 1]
if (!exclude.includes(entry)) {
applyChange(result, undefined, d)
}
})
return result
}