root
32 lines
1016 B
JavaScript
32 lines
1016 B
JavaScript
// name_validation.js
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export function validateNameLive(inputEl) {
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// Allow only letters, spaces, and dashes, 2–30 chars
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const nameRE = /^[A-Za-z -]{2,30}$/;
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const val = inputEl.value.trim();
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const valid = nameRE.test(val);
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const message = valid ? '' : 'Only letters, spaces, or dashes (2–30 chars).';
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// Toggle invalid class
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inputEl.classList.toggle('is-invalid', !valid);
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// Find or create feedback element
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let feedback = inputEl.nextElementSibling;
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while (feedback && feedback.nodeType === Node.TEXT_NODE) {
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feedback = feedback.nextSibling;
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}
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if (!feedback || !feedback.classList.contains('invalid-feedback')) {
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feedback = document.createElement('div');
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feedback.className = 'invalid-feedback';
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inputEl.parentNode.insertBefore(feedback, inputEl.nextSibling);
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}
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feedback.textContent = message;
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feedback.style.display = valid ? 'none' : 'block';
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// Sync with browser constraint validation
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inputEl.setCustomValidity(valid ? '' : message);
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return valid;
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}
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