off

Removes a callback added with on or once.

Supported on:

• PageNode

Signature

off(type: 'nodechange', callback: (event: NodeChangeEvent) => void): void

Remarks

The callback needs to be the same object that was originally added. For example, you can do this:

Correct way to remove a callback

let fn = () => { console.log("nodechange") }
page.on("nodechange", fn)
page.off("nodechange", fn)

whereas the following won't work, because the function objects are different:

Incorrect way to remove a callback

page.on("nodechange", () => { console.log("nodechange") })
page.off("nodechange", () => { console.log("nodechange") })