问题
I'm fairly new to node.js and I'm working on a discord bot with discord.js, I'm am trying to do assigned roles with commands. When I do the code and type in the command it works successfully but pops up with "DeprecationWarning: Collection#find: pass a function instead" in the console, how can I get rid of this?
https://i.imgur.com/agKFNsF.png
回答1:
This warning is caused by the following line:
var role = message.guild.roles.find('name', 'Epic Gamer');
On an earlier version of Discord.js, this would be valid, but they have now redone the find function. Instead of taking in a property and a value, you pass in a filtering function instead. This should work:
var role = message.guild.roles.find(role => role.name === "Epic Gamer")
Instead of passing in 'name' (the property), and 'Epic Gamer' (the value we want to search for/filter out), we pass in the arrow function role => role.name === 'Epic Gamer'. This is like mapping. find passes every role from message.guild.roles into the function as role, and then checks if the property we want equals the value we want.
If you would like to learn more about the find function, please check out the official documentation.
回答2:
Pass a predicate function in find method, take a look at the discord.js document on the find function.
Change the find statement to
var role = message.guild.roles.find(role => role.name === 'Epic Gamer');
Hope this will help!
来源：https://stackoverflow.com/questions/52247482/collectionfind-pass-a-function-instead