append method
Appends text to the end of this string, repeated count times.
Handy for padding, building repeated patterns, or tacking suffixes onto a base string without dealing with string concatenation.
Example:
'Hello'.append(' World') // 'Hello World'
'x'.append('-', 3) // 'x---'
'file'.append('.bak') // 'file.bak'
Implementation
String append(String text, [int count = 1]) {
return '$this${text * count}';
}