This is fairly trivial to do with Array.prototype.reduce
:
var arr = [
{ key: 'foo', val: 'bar' },
{ key: 'hello', val: 'world' }
];
var result = arr.reduce(function(map, obj) {
map[obj.key] = obj.val;
return map;
}, {});
console.log(result);
// { foo:'bar', hello:'world' }
Note: Array.prototype.reduce()
is IE9+, so if you need to support older browsers you will need to polyfill it.