JavaScript: Create an object from the given key-value pairs

JavaScript fundamental (ES6 Syntax): Exercise-41 with Solution

Write a JavaScript program to create an object from the given key-value pairs.

• Use Array.prototype.reduce() to create and combine key-value pairs.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
const object_From_Pairs = arr => arr.reduce((a, v) => ((a[v[0]] = v[1]), a), {});
console.log(object_From_Pairs([['a', 1], ['b', 2]])); 
console.log(object_From_Pairs([[1, 10], [2, 20], [3, 30]]));

Sample Output:

{"a":1,"b":2}
{"1":10,"2":20,"3":30}

Pictorial Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-1-41 by w3resource (@w3resource) on CodePen.

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