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JavaScript Regular Expressions in JavaScript Validating a Form Form Validation

zayvion blue
zayvion blue
5,970 Points

trying to answer question 2 with "return text.test(hexRegEx);" isn't working pls help.

this is stopping me from moving onto the next section

app.js
// Type inside this function
function isValidHex(text) {
     const hexRegEx = /^#[a-f0-9]{6}$/i;
     return text.test(hexRegEx);
}

const hex = document.getElementById("hex");
const body = document.getElementsByTagName("body")[0];

hex.addEventListener("input", e => {
  const text = e.target.value;
  const valid = isValidHex(text);
  if (valid) {
    body.style.backgroundColor = "rgb(176, 208, 168)";
  } else {
    body.style.backgroundColor = "rgb(189, 86, 86)";
  }
});
index.html
<!DOCTYPE html>
<html>

<head>
    <title>DOM Manipulation</title>
</head>
<link rel="stylesheet" href="style.css" />

<body>
    <div id="content">
        <p>Enter a valid hex value below to make the screen turn green.</p>
        <input type="text" id="hex">
    </div>
    <script src="app.js"></script>
</body>

</html>

1 Answer

Steven Parker
Steven Parker
229,645 Points

You're close, but have the calling syntax reversed. The method should be called on the regex variable, and the string should be passed as the argument:

     return hexRegEx.test(text);