CODEWITHSUNDEEP
javascript
user3329347
user3329347

Reputation: 11

Find a specific letter in a word

I'm doing a hangman game, this is my progress. So the computer chooses a random word, prints out as many underscores as there are letters in the word. Now I need to check if a input letter matches any of the letters in the random word. I've tried this so far.

var wordList = new Array("duck","cat","dog","carpet","pants","computer","book");

var randomWord = wordList[Math.floor(Math.random()* wordList.length)];
var underscore = function(randomWord) {
    for (i = 0; i < randomWord.length; i++) {
        document.write("_" + " " + " ");
    }
};

underscore(randomWord);

var guessLetter= prompt("Guess a letter");
var positions = function (randomWord, guessLetter){
    for (var i = 0; i < randomWord.length ; i++) {
    }
}

Now I am completely stuck, any help?

Upvotes: 1

Views: 603

Answers (2)

guy777
guy777

Reputation: 242

The following code returns all the positions matched by a letter in a word :

function checkLetterInWord(word, letter) {
    var positions = [];
    for(var i=0; i<word.length; i++) 
        if(word.charAt(i) == letter)
            positions.push(i);
    return positions;
}

var word2guess = "hangman";
var pos = checkLetterInWord(word2guess, "a");

for(var i=0; i<word2guess.length; i++) {
    if(pos.indexOf(i) === -1)
        document.write("_");
    else
        document.write(word2guess[i]);
}

Upvotes: 0

Heberda
Heberda

Reputation: 820

The following suggestion would be what you are looking for, it will return a bool;

bool isItThere = randomWord.Contains('guessletter');

if you want the position of the characters see @guy777's answer.

Upvotes: 1

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