在go中删除或调整数组大小

Question

I need delete or resize isPrime array after CalRange func called (isPrime=nil not working)

isPrime := [size]bool{}
CalRange(size, maxİndex, isPrime[:])
isPrime = nil

Thanks all for answers I solve it like that. How to delete struct object in go?

person1 := &Person{name: "Name", age: 69}
// work with person1
// Clear person1:
person1 = nil

Answer 1

In Go, arrays are different from slices. Slices can be nil, but arrays can't, since they are static.

In your code above, on the line 1, the contents of isPrime are actually [false false false ...] with as many false values as your size variable allows.

Thus, your array can't really be deleted or resized. It can only be zero-valued.

If you really need to resize it, I recommend using slices instead, or creating a new array with the new size and copying the previous array's contents into it.