# kumo.string.trim_start ```lua kumo.string.trim_start(STRING) ``` {{since('2024.09.02-c5476b89')}} Returns a string with leading whitespace removed. ‘Whitespace’ is defined according to the terms of the Unicode Derived Core Property `White_Space`, which includes newlines. ```lua assert(kumo.string.trim_start '\n Hello\tworld\t\n' == 'Hello\tworld\t\n') ```