# TickSource · API · zvuk

zvuk v1.14.1 · MIT · https://zvuk.schmooky.dev/api/TickSource/

External ticker for driving the scheduler's task dispatch. Typically
a host's existing render loop (Pixi 
`app.ticker`
, GSAP 
`gsap.ticker`
).

The scheduler subscribes lazily: only while there are pending tasks. When
the queue drains, it unsubscribes so a 60 Hz host loop isn't waking the
scheduler 60 times per second to do nothing.

Without a 
`TickSource`
, the scheduler dispatches via 
`setTimeout`
. See
the "Runtime timing" guide for trade-offs around browser timer
throttling and tab visibility.

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Interface

# TickSource

External ticker for driving the scheduler's task dispatch. Typically a host's existing render loop (Pixi \`app.ticker\` , GSAP \`gsap.ticker\` ). The scheduler subscribes lazily: only while there are pending tasks. When the queue drains, it unsubscribes so a 60 Hz host loop isn't waking the scheduler 60 times per second to do nothing. Without a \`TickSource\` , the scheduler dispatches via \`setTimeout\` . See the "Runtime timing" guide for trade-offs around browser timer throttling and tab visibility.

## Members

-   subscribe