JSFiddle - React, Tailwind, and code Playground
JavaScript
console.log("1", 2=="2" );
console.log("2", 2==="2");
console.log("3", "a"=="A");
console.log("4", "a"==="A");
console.log("5", null == undefined);
console.log("6", null === undefined);
console.log("7", null === null);
console.log("8", undefined === undefined);
console.log("9", NaN == NaN);
console.log("10", NaN === NaN);