Shalabyelectronics

// All valid credit card numbers
const valid1 = [4, 5, 3, 9, 6, 7, 7, 9, 0, 8, 0, 1, 6, 8, 0, 8]
const valid2 = [5, 5, 3, 5, 7, 6, 6, 7, 6, 8, 7, 5, 1, 4, 3, 9]
const valid3 = [3, 7, 1, 6, 1, 2, 0, 1, 9, 9, 8, 5, 2, 3, 6]
const valid4 = [6, 0, 1, 1, 1, 4, 4, 3, 4, 0, 6, 8, 2, 9, 0, 5]
const valid5 = [4, 5, 3, 9, 4, 0, 4, 9, 6, 7, 8, 6, 9, 6, 6, 6]
const valid6 =   [4, 5, 3, 9, 6, 8, 9, 8, 8, 7, 7, 0, 5, 7, 9, 8]

// All invalid credit card numbers
const invalid1 = [4, 5, 3, 2, 7, 7, 8, 7, 7, 1, 0, 9, 1, 7, 9, 5]

Shalabyelectronics

import React, { useState } from "react";

const Child = ({ resize, resizeParenObj }) => {
  const { setResizeParent, resizeBox: resizeParent } = resizeParenObj;
  return (
    <div
      style={{
        width: `${resize}px`,
        height: `${resize}px`,
        margin: 10,

Shalabyelectronics

import React, { useState, memo, useMemo, useCallback } from "react";

function Box({ color, onClick }) {
  console.log(`Box color : ${color.color}`);
  return (
    <div
      style={{
        margin: 10,
        width: 75,
        height: 75,

Shalabyelectronics

import { memo, useState } from 'react';

export default function MyApp() {
  const [name, setName] = useState('');
  const [address, setAddress] = useState('');
  return (
    <>
      <label>
        Name{': '}
        <input value={name} onChange={e => setName(e.target.value)} />

Shalabyelectronics

glossary = {
    "fruits": ["Apple", "Orange", "Banana"],
    "vegetables": ["Cucumber", "Lemon", "Tomato"],
    "sweets": ["Mars", "Kitkat", "Galaxy"]

}
# This about invers dictionary values from list to become a keys and their keys became a values that refer to them

def invert_dict(d):

Shalabyelectronics

def calc_execution(func):
    def wrapper(*args,**kwargs):
        """
        This wrapper will use time module to check
        the diffrence between the time when the excution start
        and when it's end.
        """
        import time
        start = time.time()
        value = func(*args,**kwargs)

Shalabyelectronics

def check_type(current_type:object):
    """
    This Decorator will check the datatype of the 
    target function to validate the datatype arguments.
    """
    def get_func(func):
        def wrapper(*args,**kwargs):
            check_values = []
            bad_values = []
            if args:

Shalabyelectronics

def in_range(number:int, range_from:int, range_to:int) -> bool:
    return number in list(range(range_from,range_to+1))

Shalabyelectronics

import time

def alarm_me(minutes: int, message:str) -> str:
    alarm_time = time.time() + minutes * 60
    while True:
        if time.time() > alarm_time:
            break
    print(message)

Shalabyelectronics

import re
class EmailChecker:
    def __init__(self,email:str):
        self.email = email
        self.id = None
        self.provider= None
        self.extention =None
        self.is_valid()

    def is_valid(self):