Swift For Loop (Real-Life)

Swift For Loop (Real-Life)

Use loops to process arrays, paginate data, or aggregate results.

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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)

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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)