Decrement

Format: --x
x--

Arguments: (node) x Name of an existing node, variable, object property, or list element

Returns: (num) x-- returns the value of x
--x returns the value of x minus one

Description: Both x-- and --x decrement the value of x by one. However, x-- returns the value of x before it was decremented while --x returns the value after it is decremented.

Examples: var x=5; = x = 5

y=x-- = x = 4 and y = 5

var x=5; = x = 5

y=--x = x = 4 and y = 4

See Also: Increment, Subtract