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Update README.md #792

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10 changes: 10 additions & 0 deletions README.md
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Expand Up @@ -1205,6 +1205,16 @@ The `catch` block receives the argument `x`. This is not the same `x` as the var
Later, we set this block-scoped variable equal to `1`, and set the value of the variable `y`. Now, we log the block-scoped variable `x`, which is equal to `1`.

Outside of the `catch` block, `x` is still `undefined`, and `y` is `2`. When we want to `console.log(x)` outside of the `catch` block, it returns `undefined`, and `y` returns `2`.
<pre>
let x; // Outer x
try {
throw new Error();
} catch (x) { // Inner x, shadows outer x
x = 1; // Inner x is set to 1
// The outer x is still undefined
}
</pre>


</p>
</details>
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