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| author | Shalvah <shalvah@users.noreply.github.com> | 2022-01-21 18:38:51 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-01-21 18:38:51 +0300 |
| commit | 087939471a47d7059223a5f52c933d37cbe547a9 (patch) | |
| tree | 7b8df6e7c5597b7ce3e93af10903f6707c6efd1f /doc/api/buffer.md | |
| parent | 870044ffa124209f18e82aff4c7bc902fb80e749 (diff) | |
doc: demonstrate dangers of `buffer.slice()`
PR-URL: https://github.com/nodejs/node/pull/41628
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Diffstat (limited to 'doc/api/buffer.md')
| -rw-r--r-- | doc/api/buffer.md | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/doc/api/buffer.md b/doc/api/buffer.md index 80a97ababd2..108ed091f5c 100644 --- a/doc/api/buffer.md +++ b/doc/api/buffer.md @@ -3427,6 +3427,14 @@ console.log(copiedBuf.toString()); console.log(buf.toString()); // Prints: buffer + +// With buf.slice(), the original buffer is modified. +const notReallyCopiedBuf = buf.slice(); +notReallyCopiedBuf[0]++; +console.log(notReallyCopiedBuf.toString()); +// Prints: cuffer +console.log(buf.toString()); +// Also prints: cuffer (!) ``` ```cjs @@ -3441,6 +3449,14 @@ console.log(copiedBuf.toString()); console.log(buf.toString()); // Prints: buffer + +// With buf.slice(), the original buffer is modified. +const notReallyCopiedBuf = buf.slice(); +notReallyCopiedBuf[0]++; +console.log(notReallyCopiedBuf.toString()); +// Prints: cuffer +console.log(buf.toString()); +// Also prints: cuffer (!) ``` ### `buf.swap16()` |