TAG
JavaScript
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<input type="email" id="email" name="email" value="email@" /> <button type="button" id="btn-test">Test</button>
document.addEventListener("DOMContentLoaded", () => { const $elEmail = document.getElementById("email"); const $elBtnTest = document.getElementById("btn-test"); $elEmail.addEventListener("invalid", e => { e.currentTarget.style.background = "yellow"; }); $elBtnTest.onclick = e => { if(!$elEmail.checkValidity()) { console.log($elEmail.validationMessage); } }; });
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by DevDic
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