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KLCV DEV MANUAL

UString.Trim Method

Explanation Remove spaces, tabs, line breaks, etc. from the front and back of the string.

The target character can be specified to be removed by specifying an argument.If the argument is omitted, tabs, single-byte spaces, and line breaks are targeted. (Full-width space is not applicable)
Unlike the trim function, it does not change anything other than before and after the string.

This method updates the value of the String object.

Added since Ver.5.0.0
Not available on Mobile
Call format var s = str.Trim( [ chars ])
Return value Character string with spaces removed
Arguments UString chars Characters to be removed
Specify the character string in which the characters you want to remove are arranged.
If omitted, tabs, half-width spaces, and line breaks are targeted.
Exception None
Example of use 
var str = new String(" ABC\tDEF\n ");
print(str.Trim(" \t\n　"), "\n");
print(str, "\n");
Related item trim method