A lucky number is a number that gives 1 by repeatedly adding the square of its digits. If such a process results in an endless cycle of numbers containing 4, that number is said to be an unlucky number. Create a function that accepts a number and determines whether the number is lucky or not. If so, return true, otherwise false. Examples isHappy (67) → false isHappy (89) false isHappy (2871) → false isHappy (3970) → true Solution in JS
A lucky number is a number that gives 1 by repeatedly adding the square of its digits. If such a process results in an endless cycle of numbers containing 4, that number is said to be an unlucky number. Create a function that accepts a number and determines whether the number is lucky or not. If so, return true, otherwise false. Examples isHappy (67) → false isHappy (89) false isHappy (2871) → false isHappy (3970) → true Solution in JS
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
![A lucky number is a number that gives 1 by repeatedly adding the square
of its digits. If such a process results in an endless cycle of numbers
containing 4, that number is said to be an unlucky number.
Create a function that accepts a number and determines whether the
number is lucky or not. If so, return true, otherwise false.
Examples
isHappy (67) → false
isHappy (89)
false
isHappy (2871) → false
isHappy (3970) → true
Solution in JS
li](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcd6730fb-77aa-40d3-9054-8e3780b9eab9%2F29fc61cf-d175-4ff0-a445-1d6babae7b58%2Fm1g9iho_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A lucky number is a number that gives 1 by repeatedly adding the square
of its digits. If such a process results in an endless cycle of numbers
containing 4, that number is said to be an unlucky number.
Create a function that accepts a number and determines whether the
number is lucky or not. If so, return true, otherwise false.
Examples
isHappy (67) → false
isHappy (89)
false
isHappy (2871) → false
isHappy (3970) → true
Solution in JS
li
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