Javascript - convert array of arrays into array of objects with prefilled values

Question

I have following array:

[
    [val1, val2]
    [val1, val2]
    [val1, val2]
    [valN, valN]
]

N represents the fact that the

Answer 1

You can simply use Array.prototype.map to project an array into another one by applying a projection function:

var arrs = [
    [1, 2],
    [3, 4],
    [5, 6],
    [7, 8]
];

var objs = arrs.map(function(x) { 
  return { 
    lat: x[0], 
    lng: x[1] 
  }; 
});
console.log(objs);