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* fix: added parts of website * fix: removed unnecessary lines * fix: updated contributing.md * fix: added parts of sidebar * fix: added all APIs * fix: added version 10.0.0 Co-authored-by: Jack Franklin <jacktfranklin@chromium.org>
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Home > puppeteer > EventEmitter > once
EventEmitter.once() method
Like on
but the listener will only be fired once and then it will be removed.
Signature:
once(event: EventType, handler: Handler): EventEmitter;
Parameters
Parameter | Type | Description |
---|---|---|
event | EventType | the event you'd like to listen to |
handler | Handler | the handler function to run when the event occurs |
Returns:
this
to enable you to chain method calls.