how to make a discord bot send a message to a specific channel code example

Example 1: discord.js send message to specific channel

channel = client.channels.cache.get('757685515255545917');
    channel.send('Pong');

Example 2: how to send a message to a discord server using a bot

const channel = client.channels.cache.get(channel => channel.name === 'the channel name')
channel.send(message)