From 213a82513113b7823780d6983b8874673fc415c9 Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Sun, 16 May 2021 12:40:00 +0800
Subject: [PATCH] Use `join` in `replaceNewlinesWithLiterallines` (#10860)

---
 src/document/doc-utils.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/document/doc-utils.js b/src/document/doc-utils.js
index 0fc886309..03af8218a 100644
--- a/src/document/doc-utils.js
+++ b/src/document/doc-utils.js
@@ -1,6 +1,6 @@
 "use strict";
 const getLast = require("../utils/get-last");
-const { literalline } = require("./doc-builders");
+const { literalline, join } = require("./doc-builders");
 
 const isConcat = (doc) => Array.isArray(doc) || (doc && doc.type === "concat");
 const getDocParts = (doc) => {
@@ -390,7 +390,7 @@ function normalizeDoc(doc) {
 function replaceNewlinesWithLiterallines(doc) {
   return mapDoc(doc, (currentDoc) =>
     typeof currentDoc === "string" && currentDoc.includes("\n")
-      ? currentDoc.split(/(\n)/).map((v, i) => (i % 2 === 0 ? v : literalline))
+      ? join(literalline, currentDoc.split("\n"))
       : currentDoc
   );
 }