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ts-logo-512 - Coggle Diagram

- - - - Interfaces or Generics
      - Decorators
      - highly configurable
      - Next-gen JS
      - Modern tooling (IDEs)
    - - "2" + "5" = "25" // !!!
- - - - let arr: string[]
    - - let role: [number, string]
    - - enum{NEW, OLD}
    - - let input: number | string | boolean
    - - resultConversion : "as-text" | "as-number"
    - - type ConversionDescriptor = "as-text" | "as-number"
    - - function add( x : number, y : number ) : number { return x + y) }
        
        function log( num : number,) : void { console.log( "the result is: ", num) }
        
        let add : Function
        
        let add : (a: number, b: number) => number
    - - like "any" but can't be asseigned to other "known" type
- - - - "node_modules",
        
        "app2.ts"
        
        ]
        
        excluded by default
    - - "src/**/*"
        
        ]
    - - "app1.ts",
        
        "app2.ts"
        
        ]
    - - output compiled js files in the "dist" folder
      - "rootDir": "./src"
        
        the root directory of input JS files controlling outDir structure
        
        "sourceMap": true,
        
        for debugging TS files in the browser
        
        "noEmitOnError": true
        
        no output js files on errors