Updating a JSON object using Javascript

Question

How can i update the following JSON object dynamically using javascript or Jquery?

var jsonObj = [{\'Id\':\'1\',\'Username\':\'Ray\',\'FatherName\':\'Thompso         


        

Answer 1

var i = jsonObj.length;
while ( i --> 0 ) {
    if ( jsonObj[i].Id === 3 ) {
        jsonObj[ i ].Username = 'Thomas';
        break;
    }
}

Or, if the array is always ordered by the IDs:

jsonObj[ 2 ].Username = 'Thomas';