How can we directly access cookie on client side without interop ?

I tried using interop it worked well but are there no ways to access browser cookie directly.
Following is the script of interop i want to mimic in wasm using dotnet libraries if possible if not please provide reference.

window.cacheHelpers = {
        async addToCache(cacheName, requestUrl, responseData) {
        const cache = await caches.open(cacheName);
        const response = new Response(JSON.stringify(responseData), {
            headers: { 'Content-Type': 'application/json' }
        });
        await cache.put(requestUrl, response);
    },
    async getFromCache(cacheName, requestUrl) {
        const cache = await caches.open(cacheName);
        const response = await cache.match(requestUrl);
        if (response) {
            const data = await response.json();
            return data;
        }
        return null;
    },
    async deleteFromCache(cacheName, requestUrl) {
        const cache = await caches.open(cacheName);
        await cache.delete(requestUrl);
    }
};