var str="Hello Folks!" var firstStringChar = str.charAt(0); //H
var str = "HELLO WORLD"; var res = str.charAt(0);
const paragraph = 'The quick brown fox'; console.log(paragraph.indexOf('T')); >> 0 console.log(paragraph.indexOf('h')); >> 1 console.log(paragraph.indexOf('Th')); >> 0 console.log(paragraph.indexOf('he')); >> 1 console.log(paragraph.indexOf('x')); >> 18
str.indexOf(searchValue[, fromIndex])