The provided JavaScript function, classifyEmails, efficiently organizes email recipients based on a defined threshold. It takes three arrays as input: recipientArr, ccArr, and bccArr. If the total number of recipients exceeds a specified EMAIL_THRESHOLD, the function splits the recipients into manageable groups. Otherwise, it returns the original recipient array. This approach ensures that email communications remain within limits, enhancing deliverability and organization. By leveraging this function, developers can streamline email management in applications, ensuring compliance with recipient limits.
/**
* @description Checks conditions on whether to split or not split the set of emails to chunks
* @param {Array} recipientArr | Recipient Array
* @param {Array} ccArr | CC Array
* @param {Array} bccArr | BCC Array
* @returns {Array>} outputArr
*/
var classifyEmails = (recipientArr, ccArr, bccArr) => {
var outputArr = [];
if ((Number(recipientArr.length) + Number(ccArr.length) + Number(bccArr.length)) > Number(EMAIL_THRESHOLD)) {
var possibleRecipientsLengthPerEmail = Number(EMAIL_THRESHOLD) - (Number(ccArr.length) + Number(bccArr.length));
outputArr = splitToGroups(recipientArr, possibleRecipientsLengthPerEmail);
} else {
outputArr.push(recipientArr);
}
return outputArr;
};