enumerateObjectsUsingBlock in Swift

Question

I am trying to iterate through an array using enumerateObjectsUsingBlock to fetch data. How to use enumerateObjectsUsingBlock in Swift ? Please help me with an example.

Answer 1

The existing answers can achieve what has been asked in the question. Also, you can write an extension to Array class and add similar method as -

extension Array{
func enumerateObject(_ block : (Any, Int,inout Bool)-> Void){
    var stop = false
    for (index, aValue) in self.enumerated(){
        block(aValue,index,&stop);
    }
}

//uses

let numArr = [2,4,7,8,9];
numArr.enumerateObject { (aValue, index, stop) in
    let value = aValue as! Int
    if !stop{
        print("At index \(index) value \(value)");
    }  
    if value == 7{
        print(value);
        stop = true;    
    }

}