js foreach last element code example

Example 1: javascript get last object in foreach loop

arr = [1, 2, 3]; 

arr.forEach(function(i, idx, array){
   if (idx === array.length - 1){ 
       console.log("Last callback call at index " + idx + " with value " + i ); 
   }
});

Example 2: javascript loop last index

for (const [i, value] of arr.entries()) {
    if (i === arr.length - 1) {
        // do your thing
    }
}