Trims characters from the left or right side of a string.
Removes unwanted characters from the start and/or end of a value. By default it strips away surrounding whitespace, which is the usual job: cleaning up stray spaces, tabs, and line breaks that slip into imported data. You can also remove specific characters of your choosing, such as trimming leading zeros or a trailing slash. Only the outer edges are touched; characters in the middle of the value are left alone.