JAVASCRIPT

string remove last character

public static String removeLastCharacter(String str) {   
	String result = null;   
    if ((str != null) && (str.length() > 0)) {      
    	result = str.substring(0, str.length() - 1);   
    }   
    
    return result;
}

Remove the last character from String using Slice

const bookName = 'Atomic Habits' // 13 characters (indexes between 0 and 12)
const newBookName = bookName.slice(0, bookName.length - 1) // Between (0 and 12)

console.log(newBookName)
// Output: "Atomic Habit"