appendRange
Copies a range of value to the end of this builder.
Later changes to the array do not affect the appended text. An empty range is allowed.
Return
this builder for chained calls.
Parameters
value
source array of UTF-16 code units.
startIndex
first array index to include.
endIndex
exclusive end of the array range.
Throws
if the range is reversed, is outside the array, or the resulting length would exceed Int.MAX_VALUE.