Convert JavaScript array of 2 element arrays into object key value pairs

Question

What is the fastest algorithm for getting from something like this:

var array = [ [1,\'a\'], [2,\'b\'], [3,\'c\'] ];

to something like this

Answer 1

With Object.fromEntries, you can convert from Array to Object:

var array = [
  [1, 'a'],
  [2, 'b'],
  [3, 'c']
];
var object = Object.fromEntries(array);
console.log(object);