Javascript Codewars Problem: "Simple Pig Latin"

Codewars Problem and solution with approach explained 

 
 

Objective: 

In this challenge, we will solve the “Simple Pig Latin” Codewars puzzle using javascript. 

Problem statement: 

Move the first letter of each word to the end of it, then add "ay" to the end of the word. Leave punctuation marks untouched. 

Examples: 

Input : pigIt('Pig latin is cool'); 

Output : igPay atinlay siay oolcay

Input : pigIt('Hello world !');  

Output:  elloHay orldway !

Input : pigIt('Pig latin is cool !'); 

Output : igPay atinlay siay oolcay !

Solution Approach: 

Step 1: capture each word of the string. Also check if there are no special characters. In case of special character that needs to be returned without any changes. 

Step 2 (a): if no special character, then for each word, get the first letter and remove it from the word and add it behind the word with the string "ay". 

Step 2 (b): repeat step 2 for each word and then return the final string.

Step 3 : if special characters found, skip the word and return it without any transformation. 

Hint: we will use regex to find out if the word contains any special character.  

Keeping these  points in mind, let’s jump to the solution now: 

  

  

Solution  : 

function pigIt(str){

  var inputArr = str.split(' ');

  var finalElement='';

  inputArr.forEach((element, index, inputArr) => {

      var regex = /[ !@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?]/g;

      if (!regex.test(element)){

      var elementArr = element.split('');

      var firstElement = elementArr.shift();

    if((index === inputArr.length - 1))

      finalElement= finalElement+elementArr.join("")+firstElement+"ay";

    else

    finalElement= finalElement+elementArr.join("")+firstElement+"ay "

    

        }

    else{

       finalElement= finalElement+element;

    }

     

    

    }

  )

  return finalElement;

}