Question regarding releasing cursors

[Shola Anozie]

Hi, I have a question about cursors and potential memory leaks arising from their use.

In our application we have a lot of modules that look like this:

export default function setDeeplyNestedProperty(tree, value) {
    const shortcutCursor = tree.select(['foo', 'bar', 'baz']);
    const newValue = doSomeCalculationOrTransformation(value);
    shortcutCursor.set(newValue);
}

My question is, will using .select() in this fashion cause a memory leak? Should we call shortcutCursor.release() at the end of the function? (That's what the docs seem to suggest).

Thanks!

[Guillaume Plique]

Normally, if I remember correctly how I implemented the library, if you don't set listeners on said cursors, you won't leak memory. What's more, cursors are memoized, meaning that if you select multiple times the same cursor, the same object will be returned. But if you want to be sure, using release should be safe.

[Shola Anozie]

Thanks, good to know!