remove last char string js

var str = 'mystring';

// the character 'g' will be removed
str = str.slice(0, -1);const text = 'abcdef'
const editedText = text.slice(0, -1) //'abcde'
let str = "12345.00";
str = str.substring(0, str.length - 1);
console.log(str);