function(key) {
    var pos = key.indexOf('[');
    if (pos === -1) return { type: 'string', val: key };
    return { type: 'array', val: key.substr(0, pos) };
  }
function(key) {
    var pos = key.indexOf('[');
    if (pos === -1) return { type: 'string', val: key };
    return { type: 'array', val: key.substr(0, pos) };
  }
function ( key ) { var pos = key . indexOf ( '[' ) ; if ( pos === - 1 ) return { type : 'string' , val : key } ; return { type : 'array' , val : key . substr ( 0 , pos ) } ; }
for now we will only support string and arrays
for now we will only support string and arrays