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I built a simple math game for my son using javascript so he can practice his math facts.

I want to be able to save and track his high scores using the usermeta table, but I am having trouble figuring it out. I know that I need to use this function:

update_user_meta( get_current_user_id(), 'high_score', $meta_value);

but I cannot determine how to get my "var highScore" from Javascript into the PHP $meta_value. I also need to figure out a hook or something that will trigger the function once the game is over.

edit: I was able to figure it out using the REST API and Ajax. Thanks!

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