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ivankatliarchukivankatliarchuk
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bootstrap things
Signed-off-by: ivan katliarchuk <[email protected]>
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‎2-understand/type-casting/package.json

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],
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"license": "ISC",
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"devDependencies": {
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"lite-server": "^2.5.4"
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},
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"dependencies": {
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"typescript": "^5.7.2"

‎Makefile

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@@ -18,3 +18,11 @@ validate: ## Validate files with pre-commit hooks
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cleanup: ## Cleanup folders
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@find . -type d -name "node_modules" -prune -exec rm -rf {} \;
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# @find . -type f -name "*.lock" -prune -exec rm {} \;
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DIRECTORY := with-tests/eks-addons
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run: ## Run it
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@scripts/run.sh $(DIRECTORY)
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install: ## Install dependencies
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@scripts/install.sh $(DIRECTORY)

‎scripts/install.sh

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#!/usr/bin/env bash
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if [ $# -eq 0 ]
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then
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echo -e "You need to specify the target directory.\n"
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echo -e "Usage:"
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echo -e "\t$0 <directory>"
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exit 1
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else
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directory=$1
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fi
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echo "in: $directory"
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cd $directory
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npm install

‎scripts/run.sh

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#!/usr/bin/env bash
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if [ $# -eq 0 ]
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then
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echo -e "You need to specify the target directory.\n"
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echo -e "Usage:"
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echo -e "\t$0 <directory>"
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exit 1
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else
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directory=$1
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fi
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echo "in: $directory"
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cd $directory
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deno run src/app.ts

‎with-tests/eks-addons/package.json

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{
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"name": "understanding-typescript",
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"version": "1.0.0",
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"description": "Understanding TypeScript Course Setup",
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"main": "app.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1",
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"start": "lite-server"
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},
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"keywords": [
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"typescript",
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"course"
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],
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"license": "ISC",
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"devDependencies": {
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},
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"dependencies": {
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"typescript": "^5.7.2"
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}
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}

‎with-tests/eks-addons/src/app.ts

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type Admin = {
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name: string;
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privileges: string[];
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};
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type Employee = {
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name: string;
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startDate: Date;
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};
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// interface ElevatedEmployee extends Employee, Admin {}
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type ElevatedEmployee = Admin & Employee;
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const e1: ElevatedEmployee = {
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name: 'Max',
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privileges: ['create-server'],
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startDate: new Date()
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};
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type Combinable = string | number;
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type Numeric = number | boolean;
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type Universal = Combinable & Numeric;
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function add(a: Combinable, b: Combinable) {
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if (typeof a === 'string' || typeof b === 'string') {
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return a.toString() + b.toString();
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}
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return a + b;
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}
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type UnknownEmployee = Employee | Admin;
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function printEmployeeInformation(emp: UnknownEmployee) {
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console.log('Name: ' + emp.name);
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if ('privileges' in emp) {
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console.log('Privileges: ' + emp.privileges);
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}
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if ('startDate' in emp) {
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console.log('Start Date: ' + emp.startDate);
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}
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}
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printEmployeeInformation({ name: 'Manu', startDate: new Date() });
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class Car {
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drive() {
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console.log('Driving...');
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}
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}
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class Truck {
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drive() {
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console.log('Driving a truck...');
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}
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loadCargo(amount: number) {
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console.log('Loading cargo ...' + amount);
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}
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}
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type Vehicle = Car | Truck;
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const v1 = new Car();
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const v2 = new Truck();
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function useVehicle(vehicle: Vehicle) {
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vehicle.drive();
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if (vehicle instanceof Truck) {
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vehicle.loadCargo(1000);
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}
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}
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useVehicle(v1);
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useVehicle(v2);
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interface Bird {
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type: 'bird';
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flyingSpeed: number;
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}
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interface Horse {
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type: 'horse';
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runningSpeed: number;
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}
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type Animal = Bird | Horse;
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function moveAnimal(animal: Animal) {
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let speed;
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switch (animal.type) {
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case 'bird':
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speed = animal.flyingSpeed;
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break;
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case 'horse':
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speed = animal.runningSpeed;
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}
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console.log('Moving at speed: ' + speed);
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}
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moveAnimal({type: 'bird', flyingSpeed: 10});
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‎with-tests/eks-addons/tsconfig.json

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{
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"compilerOptions": {
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/* Basic Options */
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"target": "es6", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
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"module": "commonjs", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
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"lib": [
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"dom",
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"es6",
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"dom.iterable",
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"scripthost"
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], /* Specify library files to be included in the compilation. */
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// "allowJs": true, /* Allow javascript files to be compiled. */
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// "checkJs": true, /* Report errors in .js files. */
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// "jsx": "preserve", /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
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// "declaration": true, /* Generates corresponding '.d.ts' file. */
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// "declarationMap": true, /* Generates a sourcemap for each corresponding '.d.ts' file. */
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"sourceMap": true, /* Generates corresponding '.map' file. */
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// "outFile": "./", /* Concatenate and emit output to single file. */
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"outDir": "./dist", /* Redirect output structure to the directory. */
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"rootDir": "./src", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
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// "composite": true, /* Enable project compilation */
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"removeComments": true, /* Do not emit comments to output. */
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// "noEmit": true, /* Do not emit outputs. */
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// "importHelpers": true, /* Import emit helpers from 'tslib'. */
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// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
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// "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
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"noEmitOnError": true,
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/* Strict Type-Checking Options */
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"strict": true, /* Enable all strict type-checking options. */
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// "noImplicitAny": false, /* Raise error on expressions and declarations with an implied 'any' type. */
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// "strictNullChecks": true, /* Enable strict null checks. */
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// "strictFunctionTypes": true, /* Enable strict checking of function types. */
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// "strictBindCallApply": true, /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
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// "strictPropertyInitialization": true, /* Enable strict checking of property initialization in classes. */
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// "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
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// "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
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/* Additional Checks */
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"noUnusedLocals": true, /* Report errors on unused locals. */
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"noUnusedParameters": true, /* Report errors on unused parameters. */
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"noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
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// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
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/* Module Resolution Options */
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// "moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
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// "baseUrl": "./", /* Base directory to resolve non-absolute module names. */
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// "paths": {}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
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// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
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// "typeRoots": [], /* List of folders to include type definitions from. */
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// "types": [], /* Type declaration files to be included in compilation. */
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// "allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
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"esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
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// "preserveSymlinks": true, /* Do not resolve the real path of symlinks. */
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/* Source Map Options */
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// "sourceRoot": "", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
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// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
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// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
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// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
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/* Experimental Options */
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// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
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// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
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},
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"exclude": [
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"node_modules" // would be the default
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]
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}

‎yarn.lock

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# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
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# yarn lockfile v1
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