how to remove last letter of string js code example

Example 1: javascript remove last character from string

var str = 'mystring';

// the character 'g' will be removed
str = str.slice(0, -1);

Example 2: js remove last character from string

let str = "Hello Worlds";
str = str.slice(0, -1);

Example 3: javascript remove last character from string

var str = "Hello";
var newString = str.substring(0, str.length - 1); //newString = Hell

Example 4: javascript remove last character from string

let str = "12345.00";
str = str.slice(0, -1); 
console.log(str);