JavaScript: Replace the names of multiple object keys with the values provided
JavaScript fundamental (ES6 Syntax): Exercise-14 with Solution
Write a JavaScript program to replace multiple object keys' names with the values provided.
- Use Object.keys() in combination with Array.prototype.reduce() and the spread operator (...) to get the object's keys and rename them according to keysMap.
Sample Solution:
JavaScript Code:
//#Source https://bit.ly/2neWfJ2
const rename_keys = (keysMap, obj) =>
Object.keys(obj).reduce(
(acc, key) => ({
...acc,
...{ [keysMap[key] || key]: obj[key] }
}),
{}
);
const obj = { name: 'Bobo', job: 'Programmer', shoeSize: 100 };
console.log("Original Object");
console.log(obj);
console.log("-------------------------------------");
result = rename_keys({ name: 'firstName', job: 'Actor' }, obj);
console.log("New Object");
console.log(result);
Sample Output:
"Original Object" [object Object] { job: "Programmer", name: "Bobo", shoeSize: 100 } "-------------------------------------" "New Object" [object Object] { Actor: "Programmer", firstName: "Bobo", shoeSize: 100 }
Flowchart:

Live Demo:
See the Pen javascript-fundamental-exercise-14 by w3resource (@w3resource) on CodePen.
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