Typescript: Property 'set' does not exist on type '{}'.ts
Well you basically declared the type of the variable as {}
, and you can't easily change that after the fact.
So you need to declare the functions inside to object so typescript can infer the correct type of GlobalStore
(with the methods):
const store: Record<string, string> = {};
const GlobalStore = {
set: (key: string, value: string) => {
store[key] = value;
},
get: (key: string): string => {
return store[key];
}
}
export default GlobalStore;
The correct type of GlobalStore
would be (in opposition to the {}
you currently have):
interface GloabStore {
set(key: string, value: string): void;
get(key: string): string;
}
And btw, what you are implementing is basically a (Hash)Map
, so I think you could just do:
const GlobalStore = new Map<string, string>();
export default GlobalStore;
Property does not exist on type error when the property does exist
If it is not a string or an array, otherwise it is an object
if (Array.isArray(targeter)) {
// Array
} else if (typeof targeter === "string") {
// string
} else {
// Instance of targeterInterface
}
TS2339 Error: "Property 'forEach' does not exist on type 'Collection<string, GuildMember>" DiscordJS
This will check that the channel being pulled from is a voice channel and return
if it isn’t. If you run this and nothing happens and nothing errors then the channel if you set for channel2pullFrom
is not a VC
The issue was that the correct intents were not specified. Change intents to intents: 32767,
import { Message } from "discord.js";
export default {
callback: async (message: Message, ...args: string[]) => {
const channel2pullFrom = message.guild.channels.cache.get('964675235314020442')
// you could also dynamically set this by making it one of the args
// const channel2pullFrom = message.guild.channels.cache.get(args[0])
// above line won’t work without knowing more on how your args are handled (are they shifted, etc)
if (channel2pullFrom.type != 'GUILD_VOICE') {
return
} else {
const sendersChannel = message.member.voice.channelId
const totalCount = channel2pullFrom.members.size
if (!message.member.permissions.has('MOVE_MEMBERS')) return
if (!message.member.voice.channel) return message.reply("Error: Executor of command is not in a Voice Channel.")
channel2pullFrom.members.forEach((member) => {
member.voice.setChannel(sendersChannel)
})
message.reply(`Moved ${totalCount} members.`)
}
}
}
Ignore Typescript Errors "property does not exist on value of type"
I know the question is already closed but I've found it searching for same TypeScriptException, maybe some one else hit this question searching for this problem.
The problem lays in missing TypeScript typing:
var coordinates = outerElement[0].getBBox();
Throws The property 'getBBox' does not exist on value of type 'HTMLElement'.
var outerHtmlElement: any = outerElement[0];
var coordinates = outerHtmlElement.getBBox();
Edit, late 2016
Since TypeScript 1.6, the prefered casting operator is as
, so those lines can be squashed into:
let coordinates = (outerElement[0] as any).getBBox();
Other solutions
Of course if you'd like to do it right, which is an overkill sometimes, you can:
- Create own interface which simply extends
HTMLElement
- Introduce own typing which extends
HTMLElement
Property 'X' does not exist on type 'context | null'. ts(2339)
const TasksCtx = createContext<TaskContextType | null>(null);
Your default value is null, and its type is possibly null, so you would need to narrow down the type first.
const context = useContext(...)
if (context !== null) {
context.addTask
}
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