Build a RegEx Sandbox - Build a RegEx Sandbox

Tell us what’s happening:

My code is functional but is failing the tests for some odd reason. I think i might be getting some type of input wrong but I really don’t know.

Your code so far

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="styles.css">
    <title>Regex Sandbox</title>

</head>

<body>
    <h1>Regex Sandbox</h1>
    <main>
        <div id="regex-container">
            <label for="pattern">Regex Pattern:
                <div id="pattern-container">/<input type="text" id="pattern" name="pattern"
                        placeholder="Enter your regex pattern">/</div>
            </label>
            <div id="flags-container">
                <p>Flags: </p>
                <label for="i">
                    <input type="checkbox" name="flags" id="i"> i
                </label>
                <label for="g">
                    <input type="checkbox" name="flags" id="g"> g
                </label>
            </div>
        </div>
        <div id="test-container">
            <p>Test String:</p>
            <div id="test-string" placeholder="Enter your test string" contenteditable="true"></div>
        </div>
        <button class="btn" id="test-btn" type="button">Test Regex</button>
        <div id="result-container">
            <h2>Result:</h2>
            <p id="result">
            </p>
        </div>

    </main>
    <script src="script.js"></script>
</body>

</html>

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --dark-grey: #1b1b32;
    --light-grey: #f5f6f7;
    --golden-yellow: #fecc4c;
    --yellow: #ffcc4c;
    --gold: #feac32;
    --orange: #ffac33;
    --dark-orange: #f89808;
    --border: 0.2rem solid darkgrey;
    --padding: 0.3rem;
}

body {
    background-color: var(--dark-grey);
    color: var(--light-grey);
    font-size: 20px;
    font-family: "Lato", Helvetica, Arial, sans-serif;
    padding: 5px;
}

h1 {
    margin: 5rem auto 2rem;
    text-align: center;
}

p {
    padding: var(--padding);
}

#regex-container {
    max-width: 680px;
    margin: 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
    border: var(--border);
}

#regex-container>label {
    padding: var(--padding);
    flex: 1 1 auto;
}

#pattern-container {
    display: inline-block;
    color: var(--dark-grey);
    background-color: var(--light-grey);
    margin: 5px;
    border: var(--border);
}

#pattern {
    margin: 0.2rem;
    border: 0;
    font-size: 1rem;
    width: calc(100% - 1.2rem);
}

#pattern:focus {
    outline: none;
}

#flags-container {
    display: flex;
    align-items: center;
    flex: 1 1 auto;
}

#flags-container>label {
    padding: var(--padding);
    margin-right: 0.3rem;
}

#test-container {
    max-width: 680px;
    margin: 20px auto;
    display: flex;
    flex-direction: column;
    flex: 0 0 auto;
    border: var(--border);
}

#test-string {
    background-color: var(--light-grey);
    min-height: 5rem;
    color: var(--dark-grey);
    border-top: var(--border);
    font-size: 1.2rem;
}

[contenteditable=true]:empty:before {
    content: attr(placeholder);
    pointer-events: none;
    color: var(--dark-grey);
}

::placeholder {
    color: var(--dark-grey);
}


button {
    display: block;
    cursor: pointer;
    width: 8rem;
    margin: 0.2rem auto;
    color: var(--dark-grey);
    background-color: var(--gold);
    background-image: linear-gradient(var(--golden-yellow), var(--orange));
    border-color: var(--gold);
    border-width: 0.2rem;
    font-size: 1.1rem;
}

.btn:hover {
    background-image: linear-gradient(var(--yellow), var(--dark-orange));
}

#result-container {
    max-width: 680px;
    margin: 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

h2 {
    align-self: flex-start;
    margin: 0.4rem 0.2rem 0.2rem;
    flex: 0 1 auto;
}

#result {
    color: var(--dark-grey);
    background-color: var(--light-grey);
    font-size: 1.5rem;
    flex: 1 1 auto;
    margin: 0.2rem;
    border: var(--border);
    min-height: 3rem;
}

.highlight {
    background-color: lightgreen;
}

//Functions:
const getFlags = () => {
  let flagString = "";
  globalFlag.checked? flagString += "g": flagString;
  caseInsensitiveFlag.checked? flagString += "i": flagString;
  return flagString; 
}

const displayResult = () => {
  const userRegex = new RegExp(regex, flags);
  const matches = flags.includes("g")? 
  Array.from(testString.matchAll(userRegex)):
  testString.match(userRegex);
  console.log(matches)
  if (matches) {
    if (flags.includes("g")) {
      stringToTest.innerHTML = testString.replaceAll(userRegex, (match) => {
      return `<span class="highlight">${match}</span>`
    })
      const matchString = [];
      for (const match of matches) {
        matchString.push(match[0]);
    }
      testResult.innerText = matchString.join(", ");
    } else {
      stringToTest.innerHTML = testString.replace(userRegex, (match) => {
      return `<span class="highlight">${match}</span>`;
    })
      testResult.innerText = matches[0];
    }
  } else {
    testResult.innerText = "no match";
  }
  console.log(stringToTest.innerHTML)
}

//Variables:
const regexPattern = document.getElementById("pattern");
const stringToTest = document.getElementById("test-string");
const testButton = document.getElementById("test-btn");
const testResult = document.getElementById("result");
const caseInsensitiveFlag = document.getElementById("i");
const globalFlag = document.getElementById("g");
let flags = "";
let regex = "";
let testString = "";


//Event Listeners
globalFlag.addEventListener("change", () => {
  flags = getFlags()
})
caseInsensitiveFlag.addEventListener("change", () => {
  flags = getFlags()
})
regexPattern.addEventListener("change", (event) => {
  regex = event.target.value;
})
stringToTest.addEventListener("input", (event) => {
  testString = event.target.innerText;
})
testButton.addEventListener("click", () => {
  displayResult();
})


Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Challenge Information:

Build a RegEx Sandbox - Build a RegEx Sandbox

EDIT: This passes the first 11 tests

You don’t need these in the global space. I would get them when you need them instead of relying on triggers the tests might not use.

Like, right now, the first 11 tests pass and I honestly just don’t know how to make the getflags function work without the event listeners. But I guess it’s back to the drawing board.

THANKS SO MUCH. YOU’RE AN ACTUAL LIFESAVER. Moved them to the displayResults function, got rid of the event listeners and it just worked. Again, thanks!

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