Swift break statement immediately ends the execution of the entire control flow.
If you are using a nested loop (that is, one loop is nested within another loop) Swift Flow chart: The output of the above program execution is as follows: break statement stops executing the innermost loop and then starts executing the next line of code after the block. 9.22.1. Grammar #
break the syntax format of the statement is as follows:break 
9.22.2. Example #
import Cocoa var index = 10 repeat{ index = index + 1 if( index == 15 ){ // Terminate loop when index equals 15 break } print( "The value of index is \(index)") }while index < 20
The value of index is 11 The value of index is 12 The value of index is 13 The value of index is 14