console.log("Hello World!");function reverseAString(data){ if(!data || data.length < 2 || typeof data !== 'string'){ console.log("No proper data!!!"); return; } let lengthOfData = data.length; let reversedString = ''; for(let i=lengthOfData-1;i>=0;i--){ reversedString+=data[i]; } console.log(reversedString); } reverseAString('Hi My name is Tom.'); reverseAString('');