How do I create an Auto-Clear Script in a Google Spreadsheet?

Question

I could use some help with writing a script in my Google spreadsheet. First off, I am no programmer and a novice at best on writing code or any script.

I want to

Answer 1

Follow these steps...

01. Go to https://script.google.com and then add a New Script.

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02. Paste this function

function clearRange() {
      // replace 'Sheet1' with your actual sheet name
      // replace 'dhrhrejYOURSHETIDerhe5j54j5j' with your actual sheet ID

      var sheetActive = SpreadsheetApp.openById("dhrhrejYOURSHETIDerhe5j54j5j").getSheetByName("Sheet1");
      sheetActive.getRange('A:Y').clearContent();

    }

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03. Goto Run & select Run function and then select clearRange.
Once you have run the script, your spreadsheet should be cleared.  

Follow these steps if it works correctly...

04. Goto Edit, Select 'All your triggers'

05. In 'All your triggers' popup windows, select clearRange as the Run function.
06. Set the time as you like. (See the example image)