fieldExistsByIndex(index)
Method of the data
object that returns true if a column, specified by index, exists in a CSV, XLS or XLSX file.
index
Number that represents a column in a CSV or XLS(X) file (1-based).
Example
The following script accesses all columns in a CSV file:
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var allFields=[];
var i=1;while (data.fieldExistsByIndex(i)) {
allFields.push(data.extractByIndex(i++));
}
See also: extractByIndex(index, rowOffset).