Angular ng-repeat Error “Duplicates in a repeater are not allowed.”

Answer 1

Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys.

Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}

Example

    
    
    



    

        

            
 
First Name
 
Last Name
 
            

                
{{person.firstName}}
                
{{person.lastName}}
                

            

        
 

        

            

                
{{person1.firstName}}
                
{{person1.lastName}}
            
        
           {{sayHello()}}