const originalString = "Hello, I want to remove this part of the string.";

const partToRemove = "remove this part ";

​

const modifiedString = originalString.replace(partToRemove, "");

console.log(modifiedString);

let string = "My name is Shumail";

let toBeRemove = "Shumail";

string = string.replace(tobeRemove,'');

var string = "data-123";

string = string.replace('data-','');

alert(string)

var str = "test_23";

alert(str.split("_").pop());

// -> 23

alert(str.split("_").shift());

// -> test

​

var str2 = "adifferenttest_153";

alert(str2.split("_").pop());

// -> 153