github.com/benhoyt/goawk@v1.8.1/testdata/gawk/aryprm1.awk (about)

     1  function f(a) {
     2  	if (3 in a)
     3  		print 7
     4  	a = 5
     5  }
     6  
     7  BEGIN {
     8  	f(arr)
     9  }