What's wrong with this JavaScript setTimeout closure?

What's wrong with this JavaScript setTimeout closure in a loop. The JavaScript code creates timeouts in a loop with var. In JavaScript all callbacks see the final value.

#whatswrongwiththisjavascriptcode #javascriptbug #javascriptproductionbug #javascriptdebugging #javascriptbackend #javascriptcodereview #javascriptsecurity #javascriptperformance #javascriptreliability #javascriptapi #javascri...

https://www.youtube.com/watch?v=4_JoaMBt8IE

Whats wrong with this JavaScript setTimeout closure? #javascriptcodereview

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Why does this JavaScript Proxy trap missing?

Why does this JavaScript Proxy trap missing for operation. The JavaScript code uses Proxy but does not trap all operations. In JavaScript some property access bypasses the proxy.

#whatswrongwiththisjavascriptcode #javascriptbug #javascriptproductionbug #javascriptdebugging #javascriptbackend #javascriptcodereview #javascriptsecurity #javascriptperformance #javascriptreliability #javascriptapi #javascri...

https://www.youtube.com/watch?v=HbLCpZCw4is

Why does this JavaScript Proxy trap missing? #javascriptproxy

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What's wrong with this JavaScript retry backoff?

What's wrong with this JavaScript retry backoff during outages. The JavaScript code retries on a fixed schedule without jitter, so all workers stampede at once. In JavaScript services this keeps the outage alive.

#whatswrongwiththisjavascriptcode #javascriptbug #javascriptproductionbug #javascriptdebugging #javascriptbackend #javascriptcodereview #javascriptsecurity #javascriptperformance #javascri...

https://www.youtube.com/watch?v=1Q_WUuzVRWk

Whats wrong with this JavaScript retry backoff? #javascriptsecurity

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RT @TX11_HEDGEHOG: I'm having some fun with neon... helpful Rust bindings for #NodeJS https://guides.neon-bindings.com/hello-world/ @RustNeon @rustlang #javascri… source: https://twitter.com/rustlang/status/969695525552435200
The Neon Project - Hello, World!

Hello, World!