JS: Reverse array.
JavaScript
function reverseData(data) {
const reversedData = new Array();
for(let i = data.length - 1; i >= 0; i--) {
reversedData.push(data[i]);
}
return reversedData;
}
var a = [3,5,7,8]
var b = reverseData(a);
console.log(b);