How to use the is2.port function in is2
To help you get started, we’ve selected a few is2 examples, based on popular ways it is used in public projects.
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stdarg / tcp-port-used / index.js View on Github 
function check(port, host) {
var deferred = getDeferred();
var inUse = true;
var client;
var opts;
if (!is.obj(port)) {
opts = makeOptionsObj(port, host);
} else {
opts = port;
}
if (!is.port(opts.port)) {
debug('Error invalid port: '+util.inspect(opts.port));
deferred.reject(new Error('invalid port: '+util.inspect(opts.port)));
return deferred.promise;
}
if (is.nullOrUndefined(opts.host)) {
debug('set host address to default 127.0.0.1');
opts.host = '127.0.0.1';
}
function cleanUp() {
if (client) {
client.removeAllListeners('connect');
client.removeAllListeners('error');
client.end();
client.destroy();is2
A type checking library where each exported function returns either true or false and does not throw. Also added tests.
