watch

watch( 
[ s_symbol...] 
) 
=> t / l_watchedVars / nil

Description

Sets watchpoints on the specified variables. If watch() is called without arguments, it returns the list of variables being watched. If no variables are being watched, it returns nil.

Arguments

Value Returned

Examples

watch(x) => t
watch()=> (x)
watch() => nil

Related Topics

Debug Functions