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檢測(cè)用戶是否存在于 Discord 客戶端 (Discord.js)

JavaScript

狐的傳說 2023-11-11 16:14:04

我一直在嘗試檢測(cè) Discord 客戶端本身是否存在用戶......我使用了這個(gè)：var user_id;//on message and after assigning user_idif(client.users.cache.get(user_id) !== undefined) {//checks if user does exist on the client and does action (it always thinks it's undefined for some reason)}你能幫助我嗎？我感謝你所有的幫助...

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1 回答

哈士奇WWW

TA貢獻(xiàn)1799條經(jīng)驗(yàn) 獲得超6個(gè)贊

歡迎來到SO！我就是這樣做的。UserManager#Cache是一個(gè)集合，因此您可以用來Collection#has檢查您要查找的內(nèi)容是否存在。演示：

const userId = "000000000000000000";

const exists = client.users.cache.has(userId);

console.log(exists); // true or false

// Advice to stop making cringe code --no worries, we've all been there before ;)

if (exists) doSomething(); // And not: if (exists === true), although it still can be used in other places

if (!exists) do SomethingElse(); // And definitely not: if (exists === false)

當(dāng)然，這將在緩存中進(jìn)行搜索，因此如果用戶在您的機(jī)器人啟動(dòng)時(shí)從未執(zhí)行過任何操作，則它將無法工作。要獲取并測(cè)試用戶是否存在UserManager#fetch：

const exists = await client.users.fetch(userId); // Warning: await here. To be used in async functions, or to be replaced by .then()

// Here, the user is cached

console.log(exists); // undefined or User; can be check as in the snippet above. You can still wrap 'exists' with Boolean() if you feel more comfortable having boolean values

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