JavaScript: Remove the key-value pairs corresponding to the given keys from an object

JavaScript fundamental (ES6 Syntax): Exercise-39 with Solution

Write a JavaScript program to remove the key-value pairs corresponding to the given keys from an object.

• Use Object.keys(), Array.prototype.filter() and Array.prototype.includes() to remove the provided keys.
• Use Array.prototype.reduce() to convert the filtered keys back to an object with the corresponding key-value pairs.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
const omit = (obj, arr) =>
  Object.keys(obj)
    .filter(k => !arr.includes(k))
    .reduce((acc, key) => ((acc[key] = obj[key]), acc), {});

console.log(omit({ a: 1, b: '2', c: 3 }, ['b']));
console.log(omit({ a: 1, b: 2, c: 3 }, ['c']));

Sample Output:

{"a":1,"c":3}
{"a":1,"b":2}

Pictorial Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-1-39 by w3resource (@w3resource) on CodePen.

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