kharioki

RethinkDB Cheat Sheet

Create database

r.dbCreate('mydb')

List databases

kharioki

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

contract MyContract {
    string value;

    function get() public view returns (string memory) {
        return value;
    }

kharioki

export const Countries = [
    { ru:"Афганистан",lt:"Afganistanas",tr:"Afganistan", en: 'Afghanistan', flag: '🇦🇫', code: 'AF', dialCode: '+93', mask: '999 999 9999' },
    { ru:"Аландские острова",lt:"Alandų salos",tr:"Aland adaları", en: 'Åland Islands', flag: '🇦🇽', code: 'AX', dialCode: '+358', mask: '999 9999999' },
    { ru:"Албания",lt:"Albanija",tr:"Arnavutluk", en: 'Albania',flag: '🇦🇱',code: 'AL', dialCode: '+355', mask: '999 999 9999' },
    { ru:"Алжир",lt:"Alžyras",tr:"Cezayir", en: 'Algeria',flag: '🇩🇿',code: 'DZ', dialCode: '+213', mask: '9999 99 99 99' },
    { ru:"американское Самоа",lt:"Amerikos Samoa",tr:"Amerikan Samoası", en: 'American Samoa',flag: '🇦🇸',code: 'AS', dialCode: '+1684', mask: '(999) 999-9999' },
    { ru:"андорра",lt:"Andora",tr:"Andorra", en: 'Andorra',flag: '🇦🇩',code: 'AD', dialCode: '+376', mask: '999 999' },
    { ru:"Ангола",lt:"Angoloje",tr:"Angora", en: 'Angola',flag: '🇦🇴',code: 'AO', dialCode: '+244', mask: '999 999 999' },
    { ru:"Ангилья",lt:"Angilija",tr:"Anguilla",

kharioki

function getHitProbability(R, C, G) {
  // Write your code here
  let empty = 0;
  let filled = 0;
  let tot = R*C
  
  for(let i = 0; i < R; i++){
    for(let j = 0; j < C; j++){
      G[i] && G[i][j] === 1 ? filled++ : empty++
    }

kharioki

const str = "Yeah_so_many_underscores here";
// const str = "A-B-C";
// const newStr = str.replace(/_/g, " ");
const newStr = str.replace(/[_!@#$%^&*, -]/g, " ");

const arr = newStr.split(' ');
// remove first word
let arr1 = arr.slice(0,1)
let arr2 = arr.slice(1)

kharioki

function tribonacci(n) {
  let seq = [1,1,1];
  let index;

  for (let i = 3; i < n; i++) {
    seq.push(seq[seq.length - 1] + seq[seq.length - 2] + seq[seq.length - 3])
  }
  console.log(seq)
  return seq.slice(0, n);
}

kharioki

function digPow(n, p){
  const digits = n.toString().split('').map(Number);
  let sum = 0;
  
  digits.forEach(digit => {
     sum += Math.pow(digit , p);
     p++;
  })
  
  return sum % n ? -1 : sum/n;

kharioki

const countBits = n => n.toString(2).split('0').join('').length

countBits(1234);

kharioki

/* 

Prompt:
  We have defined a basic dropdown via the Dropdown and DropdownItem components below, with example usage
  in the ExampleNav component. The Dropdown and DropdownItem components have some problems, and also 
  have room for improvements (doesn't everything?) A couple items TODO here (make sure to explain with comments!)
  
  0. How are you today? 😊
    I am great. This is an interesting exercise
  1. Please fix any obvious issues and make you see with the dropdown.

kharioki

let arr1 = [13, -3, -25, 20, -3, -16, -23, 18, 20, -7, 12, -5, -22, 15, -4, 7];

function maxSubArray (nums) {
  let maxC = nums[0];
  let maxG = nums[0];
  for (let i = 1; i < nums.length; i++) {
    maxC = Math.max(nums[i], maxC + nums[i]);
    
    maxG = maxC > maxG ? maxC : maxG;
  }