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I need to rename the object key name dynamically in a nested array of object JavaScript, I had tried with this code. This also I got from Stack Overflow only but this is not working that means it checking first level only not doing deep replacing. 

const node = { 'id': 'de603a3e', 'name': 'erewr', 'subGroups': [ { 'id': '83d7c7e4', 'name': 'dfds', 'subGroups': [ ] }, { 'id': '050cde96', 'name': 'tetwet', 'subGroups': [ ] }, { 'id': 'd67cc4e8', 'name': 'wewqe', 'subGroups': [ { 'id': '553c301d', 'name': 'ewqe', 'subGroups': [ ] } ] }, { 'id': '5d5ae5f2', 'name': 'rwq', 'subGroups': [ { 'id': 'ff29ad54', 'name': 'wqe', 'subGroups': [ ] }, { 'id': '5d013943', 'name': 'weqe', 'subGroups': [ ] } ] } ] } console.log(renameKey(node, { subGroups: 'subordinates' })) renameKey(obj, keysMap) { return transform(obj, function(result, value, key) { const currentKey = keysMap[key] || key; result[currentKey] = isObject(value) ? this.renameKey(value, keysMap) : value; }); }

I am using this code in TypeScript. note : transform and isObject are lodash

I am getting error ERROR TypeError: Cannot read property 'replaceKeysDeep' of undefined

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2 Answers 2

Reset to default
5

This should work

function renameKeys(node, keysMaps) { if(!isObject(node)) return node if(Array.isArray(node)) return node.map(item => renameKeys(item, keysMaps)) return Object.entries(node).reduce((result, [key, value]) => { const newKey = keysMaps[key] || key; return { ...result, [newKey]: renameKeys(value, keysMaps) }; }, {}); }
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const node = { 'id': 'de603a3e', 'name': 'erewr', 'subGroups': [ { 'id': '83d7c7e4', 'name': 'dfds', 'subGroups': [ ] }, { 'id': '050cde96', 'name': 'tetwet', 'subGroups': [ ] }, { 'id': 'd67cc4e8', 'name': 'wewqe', 'subGroups': [ { 'id': '553c301d', 'name': 'ewqe', 'subGroups': [ ] } ] }, { 'id': '5d5ae5f2', 'name': 'rwq', 'subGroups': [ { 'id': 'ff29ad54', 'name': 'wqe', 'subGroups': [ ] }, { 'id': '5d013943', 'name': 'weqe', 'subGroups': [ ] } ] } ] } console.log(renameKey(node, { subGroups: 'subordinates' })) function renameKey(obj, keysMap) { return _.transform(obj, function(result, value, key) { const currentKey = keysMap[key] || key; result[currentKey] = _.isObject(value) ? renameKey(value, keysMap) : value; }); }
<script src="https://cdn.jsdelivr.net/npm/[email protected]/lodash.min.js"></script>

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this only I added previously it not working for me. this the solution they gave previously
This is edit on ur original code. renameKey was not prefixed with function and in recursion it was calling with this.renameKey. It would be renameKey only. The above code works fine without error if you run the snippet.