isWhitespace

public bool isWhitespace()

true if the string is composed entirely of whitespace characters; false otherwise.

Checks if the string is composed entirely of whitespace characters. Valid whitespace characters include spaces, tabs, line breaks, form feeds, and empty strings.

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import System;   bool whitespace1 = "       ".isWhitespace(); // true bool whitespace2 = "     a ".isWhitespace()  // false