fun deleteAt(index: Int): StringBuilder
Removes the character at the specified index from this string builder and returns this instance.
If the Char at the specified index is part of a supplementary code point, this method does not remove the entire supplementary character.
index - the index of Char to remove.
IndexOutOfBoundsException - if index is out of bounds of this string builder.
© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/-string-builder/delete-at.html