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doc: update buffer.constants.MAX_LENGTH #38109

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doc: update buffer.constants.MAX_LENGTH #38109

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a7f61af
doc: update `buffer.constants.MAX_LENGTH`
Ayase-252 Apr 6, 2021
1471e99
fixup: doc: update `buffer.constants.MAX_LENGTH`
Ayase-252 Apr 6, 2021
06fb565
fixup: doc: update `buffer.constants.MAX_LENGTH`
Ayase-252 Apr 7, 2021
a2f9c9e
fixup: doc: update `buffer.constants.MAX_LENGTH`
Ayase-252 Apr 8, 2021
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fixup: doc: update buffer.constants.MAX_LENGTH
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@Ayase-252
Ayase-252 committed Apr 7, 2021
commit 06fb5650b7651e02620f03c99e47994f76359c0a
16 changes: 12 additions & 4 deletions doc/api/buffer.md
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Expand Up @@ -3410,16 +3410,24 @@ added: v8.2.0
#### `buffer.constants.MAX_LENGTH`
<!-- YAML
added: v8.2.0
changes:
- version: v15.0.0
pr-url: https://github.com/nodejs/node/pull/35415
description: Value is changed to 2<sup>32</sup> (~4GB) on 64-bit
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architectures.
- version: v14.0.0
pr-url: https://github.com/nodejs/node/pull/32116
description: Value is changed to 2<sup>32</sup> - 1 (~4GB) on 64-bit
architectures.
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-->

* {integer} The largest size allowed for a single `Buffer` instance.

On 32-bit architectures, this value currently is 2<sup>30</sup> - 1 (~1GB).
On 64-bit architectures, this value currently is

* for v12: 2<sup>31</sup> - 1 (~2GB)
* for v14: 2<sup>32</sup> - 1 (~4GB)
* for v15: 2<sup>32</sup>(~4GB)
On 64-bit architectures, this value varies from Node.js version to version.
It is at least 2<sup>31</sup> - 1 (~2GB) and currently is 2<sup>32</sup>
(~4GB). See history for detail.

It reflects [`v8::TypedArray::kMaxLength`][] under the hood.

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