channel.send({ embed: exampleEmbed });

Example 1: how to send an embed message discord.js

let Embed = new Discord.MessageEmbed()
    .setTitle()
    .setAuthor()
    .setColor()
    .addField()
    .setDescription()
    .setThumbnail()

Example 2: Embed Example Discord.js

const embed = new Discord.RichEmbed() //Ver 11.5.1 of Discord.js
.setTitle("This is a title")
.setTitle("http://tryitands.ee")
.setDescription("This is a description")
.setTimestamp()
.setFooter("This is a footer")
.setAuthor("This is the author's name", //and this its profile pic)
.addField("This is a field", "this is its description")
.setImage("https://cdn.discordapp.com/avatars/449250687868469258/1709ab4f567c56eaa731518ff621747c.png?size=2048")
.setThumbnail("https://cdn.discordapp.com/avatars/449250687868469258/1709ab4f567c56eaa731518ff621747c.png?size=2048")
<message>.<channel>.send(embed)