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How async/await Works Internally

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Step Explanation

Understand what is happening first

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Execution Visualizer

Watch memory, stack, queues, and output

Execution Visualizer

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JavaScript stores fetchData in memory. Because it is async, calling it always returns a Promise.

Call Stack

1 frame
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▲global()
frame 0
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Global Context

Memory

1 variable

Heap Memory

fetchDatafn→ refnew
"async function"
Console Output

awaiting output...

varfnobjarrclosure

Code Preview

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Code

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JavaScript
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