Question

When I run my script, I get this error message:

Syntax error: TypeError: Cannot read property “1” from undefined. line: ?

This is a snippet of my script:

var posConts = new Array();
var posContsData = SpreadsheetApp.openById(dataSheetValuesID).getSheets()[0].getRange('A:A');
var posContsDataValues = posContsData.getValues();

for (ii = 1; ii <= posContsData.getNumRows(); ii++) {
    iii = ii-1;
    posConts[iii] = posContsDataValues[ii][1];
}

I had no problems with using the collection in the values[0][0] format before.

Is this a bug?

Thanks.

Answer 1

You’re confusion the indexes. Both arrays start on 0 (as all arrays in javascript). But you’re using ii which starts on 1 on posContsDataValues and zero based iii on posConts. You’re also accessing index 1 on each row, which is wrong, since you get only one column A:A and it’s also zero-based.

I’m not sure what you’re trying to do, but from your snippet, here is a “fixed” loop.

for( var i = 0; i < posContsDataValues.length; ++i )
    posConts.push(posContsDataValues[i][0]);