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);const text = 'abcdef'
const editedText = text.slice(0, -1) //'abcde'
const s = "your_string";
const withoutLastChunk = s.slice(0, s.lastIndexOf("_"));
console.log(withoutLastChunk);