add permissions to role in every channel in the server discord.js code example

Example 1: if member has role discord.js

let allowedRole = message.guild.roles.find("name", "rolename");
    if (message.member.roles.has(allowedRole.id) {
        // allowed access to command
    } else {
       // not allowed access
    })

Example 2: permissions discord.js

if (member.hasPermission('KICK_MEMBERS')) {
	console.log('This member can kick');
}

if (member.hasPermission(['KICK_MEMBERS', 'BAN_MEMBERS'])) {
	console.log('This member can kick and ban');
}

if (member.hasPermission('KICK_MEMBERS', { checkAdmin: false, checkOwner: false })) {
	console.log('This member can kick without allowing admin to override');
}

Example 3: how to give a role permissions discord py

server = ctx.message.server
perms = discord.Permissions(send_messages=False, read_messages=True)
await client.create_role(server, name='NoSend', permissions=perms)