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JavaScript

function checkObject(obj, val) {

        function iter(o) {
            return Object.keys(o).some(function (k) {
                if (typeof o[k] === 'object') {
                    return iter(o[k]);
                }
                return o[k].toString().toLowerCase().indexOf(value) !== -1;
            });
        }

        var value = val.toString().toLowerCase();
        return iter(obj);
    }

var data = [
{
  'booking_name': 'gtec/1101822/lmikdy/ls-rmea/oss11',
  'asset_count': 2,
  'pdg': 'Invalid',
  'user_area': 'Invalid',
  'deployment_number': 'Invalid',
  'spoc': 'invalid',
  'release': 'Invalid',
  'start_date': '2017-06-12 00:00:00',
  'end_date': '2017-06-16 00:00:00',
  'asset_info': [
    {
      'bams_id': 'BAMS-1001423507',
      'hostname': 'GTVOSS11',
      'status': 10,
      'site_location': 'IEAT01 Tipperary',
      'rack_number': 'VIRTUAL RACK',
      'rack_u_position': 0,
      'manufacturer': 'EMC',
      'model': 'VM',
      
    },
    {
      'bams_id': 'BAMS-1001368001',
      'hostname': 'None',
      'status': 10,
      'site_location': 'IEAT01 Tipperary',
      'rack_number': 'VIRTUAL RACK',
      'rack_u_position': 0,
      'manufacturer': 'HP',
      'model': 'HP BL460C GEN8',
      
    }
],
'full_name': 'Invalid (invalid)',
'email_address': 'Invalid'
},
{
  'booking_name': 'gtec/1101822/lmikdy/ls-rmea/oss11',
  'asset_count': 2,
  'pdg': 'Invalid',
  'user_area': 'Invalid',
  'deployment_number': 'Invalid',
  'spoc': 'invalid',
  'release': 'Invalid',
  'start_date': '2017-06-12 00:00:00',
  'end_date': '2017-06-16 00:00:00',
  'asset_info': [
    {
      'bams_id': 'BAMS-1001423507',
      'hostname': 'GTVOSS11',
      'status': 10,
      'site_location': 'IEAT01 Tipperary',
      'rack_number': 'VIRTUAL RACK',
      'rack_u_position': 0,
      'manufacturer': 'EMC',
      'model': 'VM',
      
    }
],
'full_name': 'Invalid (invalid)',
'email_address': 'Invalid'
}];
var tempData = [];
tempData = data.filter(function...