JSFiddle - React, Tailwind, and code Playground
JavaScript
var str = "€etergerg";
console.log("substr:", str.substr(0, 1));
console.log("substring:", str.substring(0, 1));
console.log("slice:", str.slice(0, 1));
console.log("charAt:", str.charAt(0));
console.log("[]:", str[0]);