Timer timer

Creates and manages recurring timers.

;; Create a timer that runs every 1000ms (1 second)
↪ (timer 1000 0 {t: (println "Timer tick:" t)})
0  ;; Returns timer ID

;; Create a timer that runs 5 times
↪ (timer 1000 5 {t: (println "Count:" t)})
1  ;; Returns different timer ID

;; Remove a timer by ID
↪ (timer 0)
null

;; Create infinite timer (runs until removed)
↪ (timer 5000 0 {t: (do
                     (println "Background task at:" t)
                     (gc))})  ;; Run garbage collection every 5 seconds
2

Syntax

;; Create timer
(timer interval times callback)
;; Remove timer
(timer id)

- interval: Time between executions in milliseconds - times: Number of executions (0 for infinite) - callback: Lambda to execute (receives current time as argument) - id: Timer ID to remove

Warning

• Minimum interval is system-dependent
• Callback execution time affects next interval
• Timer continues until removed or count reached
• Timers are cleared when process exits