transport

• new option --tazrelation-output
• output in tazRelation format allows editing existing matrices in netedit.

Hi,

For safety use, it's better to have null check for all variables which are used in this function.

if (!_sessionPriv.$clientAlarmList) {
    return;
}

↓

if (!_sessionPriv.$clientAlarmList
     || !_sessionPriv.$monitoredItemForAlarmList
     || !_sessionPriv.$subscriptionforAlarmList ) {
    return;
}

https://github.com/node-opcua/node-opcua/blob/master/pack

Currently, WebSocket is working for client/server side. However, the browsers do not allow to create tcp connections direclty (which is the current implementation based). Instead, the web-sys must be used.

• Use a different WebSocket implementation if the target is wasm.
• wasm example of a client.

When adding multiple rpc target classes, if multiple targets contain the same\similar method, the method in first target added is used (as documented). But I miss an option to disallow duplicates, as this is (in my case) always an error. Alternatives:
-Preferably a setting on JsonRpc itself that produce error when AddLocalRpcTarget is called
-A setting on JsonRpc itself that produce error during