CODEWITHSUNDEEP
javascriptweb-workershared-worker
static660
static660

Reputation: 81

Can SharedWorkers use global variables from other shared workers?

I need to do some heavy lifting and find it a bit tedious to have to reformat my entire code and was wondering "Can SharedWorkers use global variables from other shared workers?".

If so can someone give a simple demonstration I am fairly new to SharedWorkers. I saw a thread that was very close to answering my question but did not provide a example see: the second answer with @Raynos

What's the difference between Shared Worker and Worker in HTML5?

I also looked at the main documentation and it is a bit lack luster with answering this. It just goes on about using a single shared worker to talk to to other pages . Anyhow , a example of this in action would be freaking amazing , I've been searching for a long time and come up with nothing thus far .

Upvotes: 1

Views: 1007

Answers (1)

Craig Buckler
Craig Buckler

Reputation: 295

SharedWorkers have limited support - just Firefox and Chrome. They're probably best avoided unless you have a known audience.

To answer the question: a SharedWorker can not directly access variables from another SharedWorker.

The only way to communicate with workers is to post and receive messages. A SharedWorker could initiate another SharedWorker but it would still need to pass the values it wanted to share.

In general, SharedWorkers could be useful where:

  1. your application opens multiple windows or frames
  2. any instance can set values and initiate processing, and
  3. the result would be posted back to some or all instances.

That's a fairly unusual use-case.

Upvotes: 2

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