Retired Computer Scientist: SRI-ARC (Engelbart),
Xerox PARC, Xerox SDS, Electronic Arts, SGI, Google, Box
image = FileAttachment("wordle.png").image()
Type JavaScript, then Shift-Enter. Ctrl-space for more options. Arrow ↑/↓ to switch modes.
getWord = function (guess) {
return guess.toUpperCase().substring(0, 5);
}
getResult = function (guess) {
return guess.toUpperCase().substring(6, 11);
}
hasGreenOrYellowLetter = function (letter, guess, response) {
// Does our target word already have this letter
// if so then a second occurence may be marked Black
// but we don't want to eleimate all words containing this letter
for (let i = 0; i < response.length; i++) {
if (response[i] === "G" || response[i] === "Y") {
if (guess[i] === letter) {
return true;
}
}
}
return false;
}
blackFilter = function (testword, response) {
let blackLetters = "";
for (let i = 0; i < response.length; i++) {
if (response[i] === "B") {
// Wordle can mark the second occurance of a letter black
if (!hasGreenOrYellowLetter(testword[i], testword, response))
blackLetters += testword[i];
}
}
let rx = new RegExp("[" + blackLetters + "]");
// rerurn an anonymous closure that checks to make sure the word
// doesn't conatin any of the black letters
return (word) => !rx.test(word);
}
greenFilter = function (testword, response) {
let regextemplate = "";
for (let i = 0; i < response.length; i++) {
if (response[i] === "G") regextemplate += testword[i];
else regextemplate += ".";
}
let rx = new RegExp("^" + regextemplate + "$");
// return an anaonmyous closure that uses a regular exression to test each word
// for example RegExp("^A...Y$") matches all words starting with A and ending with Y.
return (word) => rx.test(word);
}
yellowFilter = function (testword, response) {
let notHere = []; // array of location, character pairs, and regex
for (let i = 0; i < response.length; i++) {
if (response[i] === "Y") {
notHere.push({
location: i,
character: testword[i],
regx: new RegExp("[" + testword[i] + "]")
});
}
}
// return an anonymous closure that checks all the yellow lettes
return (word) => {
let result = true;
notHere.forEach((spot) => {
if (spot.regx.test(word)) {
if (word[spot.location] == spot.character) {
result = false;
}
} else {
result = false;
}
});
return result;
};
}
A note about dictionaries
The dictionary I am using is from Language Corpus Datahttps://norvig.com/ngrams/ and is the 8,939 word five letter subset of The Tournament Word List (178,690 words) -- used by North American Scrabble players. I believe the actual game uses a larger dictionary for legal words and a smaller one for actual target words. There is a small chance a target word might not be in the dictionary I am using. I did find the larger dictionary online but I could not verify rights ownership and I am lawyer adverse so I am not using it.
A note about ethics
My wife believes that programs like this are cheating and should not only never be used, but never be created in the first place. In my defense I did this because I love coding and I wanted to prove to myself that I can still code at my age. I also did it as an excellent vehicle to show off the capabilities of Observable and ES6. That I could write less than 100 lines of code and have a functional solution to an interesting puzzle game, online and accessible to billions of users is incredibly amazing. I love Observable
In any case, if you use this helper and are going to boast/post about your prowess on social networks you should probably include a note that you did so. On a side note my wife is much better a Wordlehttps://www.powerlanguage.co.uk/wordle/ that I am, even when use this helper.
fiveLetterWordsString = FileAttachment("TWL05.txt").text()
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