I want to set when someone mention me bot will respond

I’m trying to make my discord.js bot send messages when someone pings me. How can I do that??

I was trying with that code:

if(message.content === "<@723821826291138611>") {
message.channel.send("Hello, sup? ")
}

but that doesn’t work. how can I do that?

>Solution :

You have to use if(message.content.includes("<@723821826291138611>")) instead of if(message.content === "<@723821826291138611>") to make it work!

But also you can use this code to do it:

let mentioned = message.mentions.members.first();
if(mentioned && mentioned.id == "723821826291138611") {
message.channel.send("YOUR_TEXT")
}