将行添加到JavaScript数组不能按预期工作

I have a form that can submit a number of rows of data associated with a given date. One of those fields is a percentage (i.e.: 0-100). I could have three rows of a given date with percentages that add up to 100 (or not, but that's a different validation issue) or two rows with different dates and associated percentages, etc.I have a form that can submit a number of rows