Swift For Loop (Real-Life)
Swift For Loop (Real-Life)
Use loops to process arrays, paginate data, or aggregate results.
Process arrays and aggregate results
Loop over a collection and accumulate values to compute totals like sums or averages.
Example
let numbers = [1,2,3,4,5]
var sum = 0
for n in numbers { sum += n }
print(sum)Filter Even Numbers
Filter a collection to keep only the values you need.
Example
let numbers = [1,2,3,4,5]
let evens = numbers.filter { $0 % 2 == 0 }
print(evens)
