Lines & ListsLesson 369Free preview

Truncate a List

This lesson is part of Web Developer Tools · All levels

Summary

Truncate a List limits the number of rows that are displayed or saved, for example only the first 10 rows or the last 5 rows. This tool is useful for previewing, sampling, or displaying short log. Since the out-of-bounds line is removed from the result, make sure the complete data is kept in the original source.

Key points

Truncate limits the number of lines according to the selected limit
The starting mode maintains the first line, the ending mode maintains the last line
CSV header should be maintained when cutting data
The line beyond the boundary does not go into the output, but remains in the original file
Avoid truncate when all data is to be imported or analyzed

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