The main problem is that JS does not have a built-in function to do this. You can use the substr() function, but it will truncate the string at the given position, rather than removing the last character.
var str = "Hello world!"; str = str.substring(0, str.length - 1);
This code line is saying to take the string “Hello world!” and create a new string that is a substring of the original string. The new string will start at the 0 index of the original string and end at the last index of the original string minus 1.
getattr Function
The getattr function in JavaScript returns the value of a property on an object.
var obj = { name: “John”, age: 30 }; console.log(obj.name); // John console.log(obj.age); // 30
AtributteError
AtributteError is a type of error that occurs when trying to access a property or method of an object that does not exist.
