1*2bcacabbSAdam Hornacek/* 2*2bcacabbSAdam Hornacek * Sample js program 3*2bcacabbSAdam Hornacek */ 4*2bcacabbSAdam Hornacek 5*2bcacabbSAdam Hornacekvar date = new Date(96, 11, 25); 6*2bcacabbSAdam Hornacek//reference 7*2bcacabbSAdam Hornacekvar ref = date; 8*2bcacabbSAdam Hornacek 9*2bcacabbSAdam Hornacekref.setDate(21); 10*2bcacabbSAdam Hornacek 11*2bcacabbSAdam Hornacekdate.getDate(); //21 12*2bcacabbSAdam Hornacek 13*2bcacabbSAdam Hornacek// The same is true when objects and arrays are passed to functions. 14*2bcacabbSAdam Hornacek// The following function adds a value to each element of an array. 15*2bcacabbSAdam Hornacek// A reference to the array is passed to the function, not a copy of the array. 16*2bcacabbSAdam Hornacek// Therefore, the function can change the contents of the array through 17*2bcacabbSAdam Hornacek// the reference, and those changes will be visible when the function returns. 18*2bcacabbSAdam Hornacekfunction main(totals, x) 19*2bcacabbSAdam Hornacek{ 20*2bcacabbSAdam Hornacek totals[0] = totals[0] + x; 21*2bcacabbSAdam Hornacek totals[1] = totals[1] + x; 22*2bcacabbSAdam Hornacek totals[2] = totals[2] + x; 23*2bcacabbSAdam Hornacek} 24*2bcacabbSAdam Hornacek 25*2bcacabbSAdam Hornacekvar numberliteral = 0x4f; 26*2bcacabbSAdam Hornacek 27*2bcacabbSAdam Hornacek(date == ref) // Evaluates to true 28*2bcacabbSAdam Hornacek 29*2bcacabbSAdam Hornacekvar ndate= new Date(96, 11, 25); 30*2bcacabbSAdam Hornacekvar sameobjectasndate = new Date(96, 11, 25); 31*2bcacabbSAdam Hornacek 32*2bcacabbSAdam Hornacek(ndate != sameobjectasndate) // true ! 33*2bcacabbSAdam Hornacek 34