Inserting Data's Into Google Sheets Api Using Javascript

Am trying to Insert My data's Into google Sheet API . So i followed this Link After trying that am Getting no Error as PUT 400() in my console, in my Network Header Request URL

Solution 1:

You have valueInputOption==USER_ENTERED instead of valueInputOption=USER_ENTERED. Two equal signs instead of one. The error message is telling you the same: "Invalid value at 'value_input_option' (TYPE_ENUM), \"=USER_ENTERED\"" -- =USER_ENTERED isn't a valid value, but USER_ENTERED is.