JavaScript Remova o último caractere da string
var str = 'mystring';
// the character 'g' will be removed
str = str.slice(0, -1);
Coding Random Things
var str = 'mystring';
// the character 'g' will be removed
str = str.slice(0, -1);var string = "RandomString";
var slicedString = string.slice(0, -1);