'substr' not detected

[vaasav-kumar]

getting error Unexpected token: 'identifier' for the line transformJS('attibutes["time"] substr "234"')

[akilansengottaiyan]

There are syntax errors. substr is a callable expression. It should be used as substr("234") instead of substr "234".
And there are two expressions attibutes["time"] substr("234") used with space as a separator which is not a valid js expression