tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "module": "esnext",
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "importHelpers": true,
    "downlevelIteration": true, // To enable [].entries()
    "target": "es5",
    "typeRoots": ["node_modules/@types"],
    "lib": ["es2018", "dom"],

    /* Strict Type-Checking Options */
    // "strict": true /* Enable all strict type-checking options. */,
    // "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
    // "strictNullChecks": true /* Enable strict null checks. */,
    "strictFunctionTypes": true /* Enable strict checking of function types. */,
    "strictBindCallApply": true /* Enable strict 'bind', 'call', and 'apply' methods on functions. */,
    // "strictPropertyInitialization": true /* Enable strict checking of property initialization in classes. */,
    "noImplicitThis": true /* Raise error on 'this' expressions with an implied 'any' type. */,
    "alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,

    /* Additional Checks */
    "noUnusedLocals": true /* Report errors on unused locals. */,
    "noUnusedParameters": true /* Report errors on unused parameters. */,
    "noImplicitReturns": true /* Report error when not all code paths in function return a value. */,
    "noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,
    "paths": {
      "@angular/*": ["./node_modules/@angular/*"],
      "@ionic/*": ["./node_modules/@ionic/*"],
      "@ngx-translate/*": ["./node_modules/@ngx-translate/*"],
      "path": ["./node_modules/path-browserify"],
      "stream": ["./node_modules/stream-browserify"],
      "crypto": ["./node_modules/crypto-browserify"]
    }
  },
  "angularCompilerOptions": {
    "enableIvy": true,
    "strictInjectionParameters": true,
    "fullTemplateTypeCheck": true
  }
}