json index of property value

Question

I need to get the index of the json object in an array whose by the objects id

here is the example code

var list = [ { _id: \'4dd822c5e8a6c42aa7000         


        

Answer 1

Just loop through the list until you find the matching id.

function indexOf(list, id) {
  for (var i = 0; i < list.length; i++) {
    if (list[i]._id === id) { return i; }
  }
  return -1;
}