The wrap property of the HTMLTextAreaElement interface indicates how the control should wrap the value for form submission. It reflects the <textarea> element's wrap attribute. Note that the "hard" value only has an effect when the cols attribute is also set.
See wrap for the possible values. Defaults to "soft".
const textareaElement = document.getElementById("comment");
const oldWrap = textArea.wrap;
textArea.wrap = "hard"; // Add line breaks (CR+LF) during form submission