erase charcter from at an index from string code example
Example: remove character at index
// removing char at index 3
var str = "Hello World";
str = str.slice(0, 3) + str.slice(4);
console.log(str) // Helo World
// removing char at index 3
var str = "Hello World";
str = str.slice(0, 3) + str.slice(4);
console.log(str) // Helo World