Script that creates an array with 10000 random words between 3 and 5 characteres, and returns the words that are palindromes in that array

palindromes.js

const main = () => {
    var characters = 'abcdefghijklmnopqrstuvwxyz';
    var charactersLength = characters.length;
    var words = [];
    var wordsPalindromes = [];

    for(var j = 0; j < 10000; j++){
    	var wordLength = Math.floor(Math.random() * (5 - 3 + 1) ) + 3;
    	var word = '';
    	for ( var i = 0; i < wordLength; i++ ) {
    		word += characters.charAt(Math.floor(Math.random() * charactersLength));
    	}
    	
    	words.push(word);
    	
    	if(word.split('').reverse().join('') == word) {
    		wordsPalindromes.push(word);
    	}
    }
    
    return wordsPalindromes;
}