I have an array, say [{ id: 'first' }, { id: 'second' }]
Are there any native methods I'm missing that will convert the array into an array-like object? I've seen plenty of answers asking about the other direction, and recommending Array.prototype.slice.call (or the newer Array.from), but I can't find anyone asking about this. For the above example, I'd want to get the following output:
{
0: { id: 'first' }
1: { id: 'second' }
}
Reducing it
var array = [{ id: 'first' }, { id: 'second' }];
var obj = array.reduce( (a,b,i) => {return a[i]=b,a},{})
console.log(obj)Check out the documentation on Array.reduce on MDN (Mozilla Developer Network)
You could just iterate through the array and add the values to the respective index
var arr = [{ id: 'first' }, { id: 'second' }];
var set = {};
arr.forEach(function(value, index){
set[index] = value;
})
console.log(set)
Array.reduce, it does the same thing but using javascript's built in methodsNot a native method, but the following helper function should do the trick:
var arr = [{ id: 'first' }, { id: 'second' }];
function toArrayLike(arrayToConvert) {
var retVal = {};
Object.keys(arrayToConvert).forEach(function(key) {
retVal[key] = arrayToConvert[key];
});
return retVal
}
var arrayLike = toArrayLike(arr);
console.log(arrayLike);
New Set(array)<- that would create an array-like object, a Set