Property 'data' has no initializer and is not definitely assigned in the constructor.ts(2564)

                
                        Remove strictProperinitialization
                    
                

Property 'firstName' has no initializer and is not definitely assigned in the constructor

                        
                                "angularCompilerOptions": {
    //   ...
    "strictPropertyInitialization": false
    //   ...
  }
                            
                        

Property 'active' has no initializer and is not definitely assigned in the constructor.ts(2564)

                        
                                //inside tsconfig.json file
"angularCompilerOptions": {
    //   ...
    "strictPropertyInitialization": false
    //   ...
  }
  
  Just go to tsconfig.json and set

"strictPropertyInitialization": false
to get rid of the compilation error.

Otherwise you need to initialize all your variables which is a little bit annoying
                            
                        

Property '...' has no initializer and is not definitely assigned in the constructor

                        
                                Just go to tsconfig.json and set

"strictPropertyInitialization": false
to get rid of the compilation error.

Otherwise you need to initialize all your variables which is a little bit annoying
                            
                        

Property 'name' has no initializer and is not definitely assigned in the constructor.ts(2564)

                        
                                "strictPropertyInitialization": false
                            
                        

Property 'form' has no initializer and is not definitely assigned in the constructor.

                        
                                "strictPropertyInitialization": false
                            
                        

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