Created
September 18, 2020 06:13
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Flattens object, separating keys with underscores
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| const user = { | |
| "id": 1, | |
| "name": "Leanne Graham", | |
| "username": "Bret", | |
| "email": "Sincere@april.biz", | |
| "address": { | |
| "street": "Kulas Light", | |
| "suite": "Apt. 556", | |
| "city": "Gwenborough", | |
| "zipcode": "92998-3874", | |
| "geo": { | |
| "lat": "-37.3159", | |
| "lng": "81.1496", | |
| "location": { | |
| "name" : "Another galaxy" | |
| } | |
| } | |
| }, | |
| "phone": "1-770-736-8031 x56442", | |
| "website": "hildegard.org", | |
| "company": { | |
| "name": "Romaguera-Crona", | |
| "catchPhrase": "Multi-layered client-server neural-net", | |
| "bs": "harness real-time e-markets" | |
| } | |
| }; | |
| const newObj = {}; | |
| const flatten = (obj, parentKey) => { | |
| if(!(typeof obj === 'object' && obj !== null)) { | |
| return [obj, parentKey]; | |
| } | |
| for(const key in obj) { | |
| const result = flatten(obj[key], parentKey + '_' + key); | |
| if(Array.isArray(result)) { | |
| newObj[result[1]] = result[0]; | |
| } | |
| } | |
| } | |
| flatten(user, 'user'); | |
| console.log(newObj); |
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