Answers for "element implicitly has an 'any' type because expression of type 'any' can't be used to index type '{}'."

Element implicitly has an 'any' type because expression of type 'string' can't be used to index type

interface IObjectKeys {
  [key: string]: string | number;
}

interface IDevice extends IObjectKeys {
  id: number;
  room_id: number;
  name: string;
  type: string;
  description: string;
}

Element implicitly has an 'any' type because index expression is not of type 'number'

{
  ...
  "suppressImplicitAnyIndexErrors": true,
  ...
}

Element implicitly has an 'any' type because expression of type 'string' can't be used to index type

tsconfig.json

 "compilerOptions": {
   	...
    "noImplicitReturns": true,
    "noImplicitAny": false,
    ...
 }

Element implicitly has an 'any' type because index expression is not of type 'number'.ts(7015)

//in js code somewhere
window.DataManager = "My Data Manager";


//in strict typescript file
let test = (window as { [key: string]: any })["DataManager"] as string;
console.log(test); //output= My Data Manager