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authorcjihrig <cjihrig@gmail.com>2019-07-11 12:35:34 -0400
committerMichaël Zasso <targos@protonmail.com>2019-07-20 11:10:25 +0200
commit17df75f5c961bfbaddf8f18359ccc7d18092c5c2 (patch)
treefe67e6b8977747cde9eb33a223979972c6eb5c1d /doc
parent3f65b91eb93ed4d1dfaf82086e5a42f0e75c3bf6 (diff)
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readline: expose stream API in clearScreenDown()
This commit adds an optional callback to clearScreenDown(), which is passed to the stream's write() method. It also exposes the return value of write(). PR-URL: https://github.com/nodejs/node/pull/28641 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
Diffstat (limited to 'doc')
-rw-r--r--doc/api/readline.md10
1 files changed, 9 insertions, 1 deletions
diff --git a/doc/api/readline.md b/doc/api/readline.md
index 8f372a8473..b295ace5b3 100644
--- a/doc/api/readline.md
+++ b/doc/api/readline.md
@@ -360,12 +360,20 @@ added: v0.7.7
The `readline.clearLine()` method clears current line of given [TTY][] stream
in a specified direction identified by `dir`.
-## readline.clearScreenDown(stream)
+## readline.clearScreenDown(stream[, callback])
<!-- YAML
added: v0.7.7
+changes:
+ - version: REPLACEME
+ pr-url: https://github.com/nodejs/node/pull/28641
+ description: The stream's write() callback and return value are exposed.
-->
* `stream` {stream.Writable}
+* `callback` {Function} Invoked once the operation completes.
+* Returns: {boolean} `false` if `stream` wishes for the calling code to wait for
+ the `'drain'` event to be emitted before continuing to write additional data;
+ otherwise `true`.
The `readline.clearScreenDown()` method clears the given [TTY][] stream from
the current position of the cursor down.