Comparing user input values and values from google sheet for google charts.

[Wanmi Siangshai]

I'm trying to select only the dates that match the date input by the user. Eg: say the user wants to view a line chart for only the date 08/02/2016, my idea is to use an "input type" tag for the user input and compare it to the values of the timestamp, however, I can't seem to compare only the dates from the timestamp where the user inputs "08/02/2016" and compare it to each cell.Any ideas or help to point me in the right direction would be much appreciated.