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JavaScript Regular Expressions in JavaScript Validating a Form Form Validation

Khalid S Nabhani
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.a{fill-rule:evenodd;}techdegree
Khalid S Nabhani
Full Stack JavaScript Techdegree Student 13,008 Points

function isValidHex(text) { const hexRegEx = /^#[1-9a-fA-f]{6}/; return regex.test(text); } would not work

the regex that i creat woulkd not work i dont know why

app.js
// Type inside this function
function isValidHex(text) {
  const hexRegEx = /^#[1-9a-fA-f]{6}/;
 return regex.test(text);
}

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>

2 Answers

Khalid S Nabhani
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.a{fill-rule:evenodd;}techdegree
Khalid S Nabhani
Full Stack JavaScript Techdegree Student 13,008 Points

I just updated to the follwing RegEx and i got this error : Bummer: Your regular expression matches CSS hexadecimal color values, but also matches other values. See if you can limit your regex to meet the requirements.

function isValidHex(text) { const hexRegEx = /#[0-9a-fA-F]{6}/; return hexRegEx.test(text);

}