Suppose the pattern attribute has been set to equal the regu…
Suppose the pattern attribute has been set to equal the regular expression ^\d{5}5$ within the tag for the accountNo field in a web form. This regular expression matches a text string of exactly five digits. What can you insert in the blank in the following JavaScript function to display a custom error message when the user enters something other than five digits, then tries to submit the form?let submitButton = document.getElementById(“submitButton”);submitButton.addEventListener(“click”, validateAccount);function validateAccount() { let acc = document.getElementbyId(“accountNo”); if (acc.validity.valueMissing) { acc.setCustomValidity(“Please enter your account number”); } _____ { acc.setCustomValidity(“Account numbers have five digits”); } else { acc.setCustomValidity(“”); }}