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lines changed Original file line number Diff line number Diff line change @@ -612,7 +612,7 @@ added: v5.10.0
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This creates a view of the [ ` ArrayBuffer ` ] [ ] without copying the underlying
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memory. For example, when passed a reference to the ` .buffer ` property of a
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[ ` TypedArray ` ] [ ] instance, the newly created ` Buffer ` will share the same
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- allocated memory as the [ ` TypedArray ` ] [ ] .
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+ allocated memory as the [ ` TypedArray ` ] [ ] 's underlying ` ArrayBuffer ` .
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``` js
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const arr = new Uint16Array (2 );
@@ -648,6 +648,21 @@ A `TypeError` will be thrown if `arrayBuffer` is not an [`ArrayBuffer`][] or a
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[ ` SharedArrayBuffer ` ] [ ] or another type appropriate for ` Buffer.from() `
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variants.
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+ It is important to remember that a backing ` ArrayBuffer ` can cover a range
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+ of memory that extends beyond the bounds of a ` TypedArray ` view. A new
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+ ` Buffer ` created using the ` buffer ` property of a ` TypedArray ` may extend
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+ beyond the range of the ` TypedArray ` :
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+
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+ ``` js
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+ const arrA = Uint8Array .from ([0x63 , 0x64 , 0x65 , 0x66 ]); // 4 elements
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+ const arrB = new Uint8Array (arrA .buffer , 1 , 2 ); // 2 elements
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+ console .log (arrA .buffer === arrB .buffer ); // true
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+
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+ const buf = Buffer .from (arrB .buffer );
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+ console .log (buf);
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+ // Prints: <Buffer 63 64 65 66>
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+ ```
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+
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### Static method: ` Buffer.from(buffer) `
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<!-- YAML
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added: v5.10.0
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