javascriptfunctionfor-looppalindrome

Trying to create a function where you input a list of words as a arugment & the function returns only the words that are a Palindrome. How can I?


I'm trying to solve this issue in javascript. I understand in javascript functions (for the most part) can only return one word. I'm trying to figure out how to return multiply words within a function. If theres another way besides a function that I can solve this i'm open to that too.

function aListOfPalindromeWords (str){


const words = "a aa aaa aah aahed aahing aah saal aalii aaliis aals aam";

const myWords = words.split(" ");
var reversedStr = "";

for (let i = 0; i < myWords.length; i++){
for (let j = myWords[i].length; i >=0; i--){
reversedStr += myWords[i];

>   {
if (reversedStr === myWords[i]);
>     {
return myWords[i];

>   }
>  }
>  }
>  }
>  }
console.log(aListOfPalindromeWords ());

Solution

  • You can either return an array or a string which will contain word which are palindrome.

    You can do this using split, filter, reverse and join.

    const words = "a aa aaa aah aahed aahing aah saal aalii aaliis aals aam";
    
    function aListOfPalindromeWords(words) {
        const result = words.split(" ")
            .filter(word => word === word.split("")
                .reverse()
                .join(""));
      
        // AN ARRAY OF PALINDROME STRING
        return result;
    }
    
    console.log(aListOfPalindromeWords(words))

    If you want to return string which contains only palindrome words then you can return result.join(" "), which will return string.

    const words = "a aa aaa aah aahed aahing aah saal aalii aaliis aals aam";
    
    
    function aListOfPalindromeWords(words) {
        const result = words.split(" ")
            .filter(word => word === word.split("")
                .reverse()
                .join(""));
    
        // A STRING WHICH CONTAIN ALL PALINDROME WORDS
        return result.join(" ");
    }
    
    console.log(aListOfPalindromeWords(words))