<center><h1>Check the JS Panel</h1></center>
let myString = "That's my string";
//let myBigString = myString.toUpperCase();
//console.log(myBigString);
// auto boxing
let myStringObj = new String(myString); // transient object discarded when the function finishes evaluation
let myBigString = myStringObj.toUpperCase();
console.log(myBigString);
console.log(typeof myBigString);
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This Pen doesn't use any external JavaScript resources.