thambaru

import React, { useRef, useState, useReducer } from "react";

const todoReducer = (state, action) => {
  const { type, payload } = action;
  switch (action.type) {
    case "add":
      return [...state, { text: payload, completed: false }];
    case "toggle":
      state[payload].completed = !state[payload].completed;
      return [...state];

thambaru

# Python exercise: https://www.w3resource.com/python-exercises/python-basic-exercises.php
#
# 4. Write a Python program that calculates the area of a circle based on the radius entered by the user.
#
# Some online compilers do not allow importing sys.
# Remove the following line in such case, and set sysIsAvailable to False.
from sys import exit
isSysAvailable = True

from math import pi

thambaru

# Python exercise: https://www.w3resource.com/python-exercises/python-basic-exercises.php
#
# Write a Python program to print the following string in a specific format (see the output).
# Sample String : "Twinkle, twinkle, little star, How I wonder what you are! Up above the world so high, Like a diamond in the sky. Twinkle, twinkle, little star, How I wonder what you are"
# Output :
#
# Twinkle, twinkle, little star,
# 	How I wonder what you are! 
# 		Up above the world so high,   		
# 		Like a diamond in the sky.