DimitryDushkin

type DraggerPosition = 'top-left' | 'top-right' | 'bottom-left' | 'bottom-right';

const computeGeometryWhileDragging = (
    position: DraggerPosition,
    preserveAspectRatio: boolean,
    initialGeometry: SlideElementGeometry,
    currentGeometry: SlideElementGeometry,
    dx: number,
    dy: number
): SlideElementGeometry => {

DimitryDushkin

// @flow

export async function retryPromise<T: Array<*>>(fn: (...T) => Promise<*>, args: T, tryCount: number = 3) {
    try {
        return await fn(...args);
    } catch (e) {
        console.log(`Promise retry error. Attempts left: ${tryCount}`, e);
        if (tryCount > 1) {
            return await retryPromise(fn, args, tryCount - 1);
        } else {

DimitryDushkin

type $Values<O extends object> = O[keyof O];

const obj = {
  RU: 'ru',
  EN: 'en',
} as const;
  
type vals = $Values<typeof obj>; // vals === 'ru' | 'en';

DimitryDushkin

import {Action as ReduxAction, Middleware as ReduxMiddleware, Store as ReduxStore} from 'redux';
import {NavigationState, NavigationScreenProp} from 'react-navigation';
import {ThunkAction, ThunkDispatch} from 'redux-thunk';
import {StateType} from 'typesafe-actions';
import {reducers} from 'store/reducers/root.reducer';

export type AppState = StateType<typeof reducers>;

export interface Action<T = any, P extends object = any, M = any> extends ReduxAction<T> {
    payload?: P;

DimitryDushkin

{
  "compileOnSave": true,
  "compilerOptions": {
    "skipLibCheck": true,
    /* Basic Options */
    "target": "es2015",                       /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
    "module": "es2015",                       /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "lib": ["es2017", "dom"],                 /* Specify library files to be included in the compilation. */
    // "allowJs": true,                       /* Allow javascript files to be compiled. */
    // "checkJs": true,                       /* Report errors in .js files. */

DimitryDushkin

import {Provider, Consumer} from 'react';

// tslint:disable-next-line
type Curry<F extends Function> = F extends (arg1: infer T1, arg2: infer T2, arg3: infer T3) => any
    ? (arg3: T3) => ReturnType<F>
    : never;

type RVSActionCreator<S, A> = (state: S, actions: A, arg: any) => any;
type ActionCreatorsMap<S, A> = {[actionName: string]: RVSActionCreator<S, A>};

DimitryDushkin

// babel.config.js
module.exports = {
  "presets": [
    "module:metro-react-native-babel-preset",
  ],
  "plugins": [
    ["module-resolver", {
      "root": ["./src"],
      "extensions": [".js", ".ts", ".tsx", ".ios.js", ".android.js"]
    }],

DimitryDushkin

export default class SomeSingleton {
    private static privateShared: Api;

    public static get shared(): Api {
        if (!SomeSingleton.privateShared) {
            SomeSingleton.privateShared = new SomeSingleton();
        }

        return SomeSingleton.privateShared;
    }

DimitryDushkin

{
	"react statefull component": {
		"prefix": "react-native-statefull",
		"body": [
			"import React from 'react';",
			"import {View, StyleSheet} from 'react-native';",
			"",
			"type Props = {",
			"",
			"};",

DimitryDushkin

const isLegacyBuild = typeof process.env.BUNDLE_FOR_IOS === 'undefined';
const iosVersion = process.env.BUNDLE_FOR_IOS || 12;
const modernBuild = {
  presets: [
    [
      '@babel/preset-env',
      {
        targets: `iOS >= ${iosVersion}`,
      },
    ],