Please enable JavaScript.

Coggle requires JavaScript to display documents.

TypeScript - Coggle Diagram

- - - - noImplicitOverride
- - - - strictNullChecks
  - - - allowUnreachableCode
- - - - experimentalDecorators
- - - - allowJs
      - module
  - - - checkJs
- - - - module
  - - - moduleResolution
        
        node
- - - - rootDir & outDir
      - sourceMap
      - module & target
      - removeComments & noEmitOnError
  - - - Compiler Options
        
        noImplicitAny
    - - empty array is type any, it should be initialized with type
      - forEach to know the properties & methods of target
    - - array has elements with different types
      - restrict two values to make code easier understand
    - - initialized by const has better performance, but still has issues
      - use union syntax or string literal union is better
    - - Compiler Options
        
        noUnusedParameters
        
        noImplicitReturns
        
        noUnusedLocals
      - JS always return undefined from functions
      - question mark for optional parameter
      - always properly annotate the function's parameters and return types
    - - inferred the shapes of objects
      - readonly modifier make property of object cant be modified
      - specify parameter and return type by arrow function