When creating a form to accept user info, there are times when functions related to a form input's default value are required. For example, you have a field that says "search here", and when the user clicks in the field, the default value is removed so the user can begin typing. But, if the user leaves the field blank, you might want that default term to return. In regular javascript, we use something like this:

view plain print about
1if(inputName.value == ''){
2inputName.value = inputName.defaultValue

but jQuery doesn't have a built-in method for retrieving that default value. Thankfully, google found me a super easy workaround - this discussion thread holds the key:

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1if ($(this).val() == "") {
2 var defVal = $(this)[0].defaultValue;
3 $(this).val(defVal);
4 }

Note the [0] in the defaultValue. As explained in the thread linked above: "If you imagine $(this) as an array of DOM objects within jQuery, then $(this)[0] is a way to access the first (or in this case, only) DOM object. jQuery doesn't have a built in way to retrieve the default value of an input, so we have to nip back into the DOM momentarily in order to retrieve it. "