var arr = [];
for (var i = 0; i < 5000; i++) {
arr.push(i);
}
return arr.filter(currVal => currVal% 2 === 0).map(currVal => String(currVal))
return arr.reduce((currArray, currVal) => {
if (currVal % 2 === 0) currArray.push(String(currVal));
return currArray;
},[]);
let newArr = [];
for (let currVal of arr) {
if (currVal % 2 === 0) {
newArr.push(String(currVal));
}
}
return newArr;
return arr.flatMap((currVal)=>{
return currVal % 2 === 0 ? [String(currVal)] : []
})