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Syntax doubt #41

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asd123ea opened this issue Jan 18, 2021 · 0 comments
Open

Syntax doubt #41

asd123ea opened this issue Jan 18, 2021 · 0 comments

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@asd123ea
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I'm reading the 10 chapter, Building Microservice systems.
And I came accross to this syntax below at page 506 (Standardizing service boilerplate)

function createClient (ns, opts) {
  return createClient[ns] || (createClient[ns] = nos(net.connect(opts)))
}

Didn't quite understand the createClient[ns] = nos(net.connect(opts)) part, What it means? Why should I use it?

Is this syntax documented anywhere?
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