how to get the first character of a string in javascript

1let str = 'John Wick'
2let firstChar = str.charAt(0) 
3console.log(firstChar); // "J" 

1var str="Hello Folks!"
2var firstStringChar = str.charAt(0); //H

1let myStr = "Hello World"
2let firstWord = myStr.split(" ")[0]
3

1const string = "0123456789";
2console.log(string.slice(0, 2)); // "01"
3console.log(string.slice(0, 8)); // "01234567"
4console.log(string.slice(3, 7)); // "3456"

1String.substring(0, 10);

1var x = 'some string';
2alert(x.charAt(0)); // alerts 's'