hey i have probleme with condition, help me pls

[silk knot]

why i have this error ?

messageData[0] and lastMessage[0] exists

lastMessage[0] :

[wanton maple]

timestamp doesn't?

[silk knot]

timestamp exist

[wanton maple]

mhm. I think you should try checking if lastMessage[0] exists then?

let lastMsg = lastMessage[0] ? lastMessage[0].timestamp : null```

[silk knot]

I add this line like this?

GetMessage(url_info.channel_id,5).then(messageData => {
    lastMessage = messageData;
    let lastMsg = lastMessage[0] ? lastMessage[0].timestamp : null
    function GetLastMessage() {
        GetMessage(url_info.channel_id,5).then(messageData => {
            if (lastMessage[0].timestamp !== messageData[0].timestamp) {
                lastMessage = messageData[0];
                console.log("new message")
                let eventOnMessage = new CustomEvent('OnMessage', {
                    detail: { message: lastMessage }
                });
                document.dispatchEvent(eventOnMessage);
            }
            GetLastMessage()
        });
    };
    GetLastMessage();
});```

[wanton maple]

Yes, then use lastMsg right after

[silk knot]

GetMessage(url_info.channel_id,5).then(messageData => {
    lastMessage = messageData;
    let lastMsg = lastMessage[0] ? lastMessage[0].timestamp : null
    function GetLastMessage() {
        GetMessage(url_info.channel_id,5).then(messageData => {
            if (lastMsg[0].timestamp !== messageData[0].timestamp) {
                lastMessage = messageData[0];
                console.log("new message")
                let eventOnMessage = new CustomEvent('OnMessage', {
                    detail: { message: lastMessage }
                });
                document.dispatchEvent(eventOnMessage);
            }
            GetLastMessage()
        });
    };
    GetLastMessage();
});```
Like this ?

[wanton maple]

No. use lastMsg only 🙂

[silk knot]

GetMessage(url_info.channel_id,5).then(messageData => {
    lastMessage = messageData;
    let lastMsg = lastMessage[0] ? lastMessage[0].timestamp : null
    function GetLastMessage() {
        GetMessage(url_info.channel_id,5).then(messageData => {
            if (lastMsg) {
                lastMessage = messageData[0];
                console.log("new message")
                let eventOnMessage = new CustomEvent('OnMessage', {
                    detail: { message: lastMessage }
                });
                document.dispatchEvent(eventOnMessage);
            }
            GetLastMessage()
        });
    };
    GetLastMessage();
});```?

that give that

[wanton maple]

Yes, now it works.

And the reason of that is because you have called the function inside the function

[silk knot]

no that don't work

[wanton maple]

.

[silk knot]

Yes to create a loop, I don't understand the problem

[wanton maple]

That's the reason, you are creating an infinite loop

[silk knot]

yes i know

i need a infinite loop

[wanton maple]

/run

function sendMessage () {
 console.log('message')
 sendMessage()
}
sendMessage()

[agile oar]

Here is your ts(5.0.3) output @wanton maple

message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message
message```

[wanton maple]

See?

[silk knot]

yeah

[wanton maple]

Or did you made it intentionally?

[silk knot]

yes i made this intentionally

to explain to you what I want it is a loop that makes a query that takes the last message, if it is different from the last, its launches the event 'OnMessage' with as argument the new message

[wanton maple]

it should be message: lastMessage[0] since lastMessage returns an array

[silk knot]

my code I sent you was, ```js
GetMessage(url_info.channel_id,5).then(messageData => {
lastMessage = messageData;
console.log(lastMessage[0])
console.log(messageData[0])
function GetLastMessage() {
GetMessage(url_info.channel_id,5).then(messageData => {
if (lastMessage[0].timestamp !== messageData[0].timestamp) {
lastMessage = messageData[0];
console.log("new message")
let eventOnMessage = new CustomEvent('OnMessage', {
detail: { message: lastMessage }
});
document.dispatchEvent(eventOnMessage);
}
GetLastMessage()
});
};
GetLastMessage();
});

document.addEventListener('OnMessage', function(e) {
console.log(e.message);
});``` and I had an error that was

Its worked as I just want a problem with timestamp, you gave me solutions to solve problems that I am not. I think you didn't understand what I want,

[wanton maple]

I did

[wanton maple]

[silk knot]

how ?

can you write script with lastMsg pls for i see

[wanton maple]

if(lastMsgg != messageData[0].timestamp)
  // ...```

[silk knot]

GetMessage(url_info.channel_id,5).then(messageData => {
    lastMessage = messageData;
    function GetLastMessage() {
        GetMessage(url_info.channel_id,5).then(messageData => {
            if(lastMsgg != messageData[0].timestamp) {
                lastMessage = messageData[0];
                lastMsg = lastMessage[0] ? lastMessage[0].timestamp : null
                console.log("new message")
                let eventOnMessage = new CustomEvent('OnMessage', {
                    detail: { message: lastMessage }
                });
                document.dispatchEvent(eventOnMessage);
            }
            GetLastMessage()
        });
    };
    GetLastMessage();
});

document.addEventListener('OnMessage', function(e) {
    console.log(e.message);
});```?

[wanton maple]

I mispelled it

it's lastMsg

[silk knot]

that work !

very thanks bro