I am having List Array like: this is getCall.

[ {"presenter":"Bharath","topic":"Angular","status":"scheduled","emailId":"bharathkumar@gmail.com"}, {"presenter":"Sayyad","topic":"Angular","status":"organized","emailId":"raheemsayyad@gmail.com"},{"presenter":"Kanchan","topic":"APS","status":"scheduled","emailId":"kanchanubey@gmail.com"} ];

if Logged user is kanchanubey@gmail.com is matches to this List of Array emailId. i need to enable checkbox . if not matches need to do disable.

Code :

private getktsession(){ console.log('==', this.sesionUser['emailid']);

this.service.getKtsession().subscribe(data =>{
  console.log('get', data);
  this.ktsessions = data;
  data.filter(user => {
    if(user.emailId === this.sesionUser['emailid']){
      this.isDisabled  =false;
    } else {
      this.isDisabled  =true;
      console.log('else');
      }
  });
});

} HTML code is