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A recursive function to limit the number of items in a specified cache.
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| // Limit the number of items in a specified cache. | |
| function trimCache(cacheName, maxItems) { | |
| caches.open(cacheName) | |
| .then( cache => { | |
| cache.keys() | |
| .then(keys => { | |
| if (keys.length > maxItems) { | |
| cache.delete(keys[0]) | |
| .then( () => { | |
| trimCache(cacheName, maxItems) | |
| }); // end delete then | |
| } // end if | |
| }); // end keys then | |
| }); // end open then | |
| } // end function |
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