Property 'editor' has no initializer and is not definitely assigned in the constructor. in angular 12 code example

Example 1: Property 'products' has no initializer and is not definitely assigned in the constructor.

//inside tsconfig.json file
"angularCompilerOptions": {
    //   ...
    "strictPropertyInitialization": false
    //   ...
  }

Example 2: Property 'form' has no initializer and is not definitely assigned in the constructor.

"strictPropertyInitialization": false