how to remove last char in string javascript code example

Example 1: js remove last character from string

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

Example 2: javascript remove last character from string

str = str.substring(0, str.length - 1);

Example 3: javascript remove last character from string

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

Example 4: javascript remove last character from string

let str = "hello ";
str = str.substring(str.length - 1);