diff --git a/src/language-handlebars/printer-glimmer.js b/src/language-handlebars/printer-glimmer.js
index 5c2767aa6..724771bd1 100644
--- a/src/language-handlebars/printer-glimmer.js
+++ b/src/language-handlebars/printer-glimmer.js
@@ -10,7 +10,7 @@ import {
   replaceEndOfLine,
   softline,
 } from "../document/index.js";
-import getPreferredQuote from "../utilities/get-preferred-quote.js";
+import { getPreferredQuote } from "../utilities/get-preferred-quote.js";
 import htmlWhitespace from "../utilities/html-whitespace.js";
 import isNonEmptyArray from "../utilities/is-non-empty-array.js";
 import UnexpectedNodeError from "../utilities/unexpected-node-error.js";
diff --git a/src/language-html/print/children.js b/src/language-html/print/children.js
index 2a98c5521..9658f2303 100644
--- a/src/language-html/print/children.js
+++ b/src/language-html/print/children.js
@@ -72,65 +72,83 @@ function printChild(path, options, print) {
 }
 
 function printBetweenLine(prevNode, nextNode) {
-  return isTextLikeNode(prevNode) && isTextLikeNode(nextNode)
-    ? prevNode.isTrailingSpaceSensitive
-      ? prevNode.hasTrailingSpaces
-        ? preferHardlineAsLeadingSpaces(nextNode)
-          ? hardline
-          : line
-        : ""
-      : preferHardlineAsLeadingSpaces(nextNode)
-        ? hardline
-        : softline
-    : (needsToBorrowNextOpeningTagStartMarker(prevNode) &&
-          (hasPrettierIgnore(nextNode) ||
-            /**
-             *     123<a
-             *          ~
-             *       ><b>
-             */
-            nextNode.firstChild ||
-            /**
-             *     123<!--
-             *            ~
-             *     -->
-             */
-            nextNode.isSelfClosing ||
-            /**
-             *     123<span
-             *             ~
-             *       attr
-             */
-            (nextNode.kind === "element" && nextNode.attrs.length > 0))) ||
+  if (isTextLikeNode(prevNode) && isTextLikeNode(nextNode)) {
+    if (prevNode.isTrailingSpaceSensitive) {
+      if (prevNode.hasTrailingSpaces) {
+        if (preferHardlineAsLeadingSpaces(nextNode)) {
+          return hardline;
+        }
+
+        return line;
+      }
+
+      return "";
+    }
+
+    if (preferHardlineAsLeadingSpaces(nextNode)) {
+      return hardline;
+    }
+
+    return softline;
+  }
+
+  if (
+    (needsToBorrowNextOpeningTagStartMarker(prevNode) &&
+      (hasPrettierIgnore(nextNode) ||
         /**
-         *     <img
-         *       src="long"
-         *                 ~
-         *     />123
+         *     123<a
+         *          ~
+         *       ><b>
          */
-        (prevNode.kind === "element" &&
-          prevNode.isSelfClosing &&
-          needsToBorrowPrevClosingTagEndMarker(nextNode))
-      ? ""
-      : !nextNode.isLeadingSpaceSensitive ||
-          preferHardlineAsLeadingSpaces(nextNode) ||
-          /**
-           *       Want to write us a letter? Use our<a
-           *         ><b><a>mailing address</a></b></a
-           *                                          ~
-           *       >.
-           */
-          (needsToBorrowPrevClosingTagEndMarker(nextNode) &&
-            prevNode.lastChild &&
-            needsToBorrowParentClosingTagStartMarker(prevNode.lastChild) &&
-            prevNode.lastChild.lastChild &&
-            needsToBorrowParentClosingTagStartMarker(
-              prevNode.lastChild.lastChild,
-            ))
-        ? hardline
-        : nextNode.hasLeadingSpaces
-          ? line
-          : softline;
+        nextNode.firstChild ||
+        /**
+         *     123<!--
+         *            ~
+         *     -->
+         */
+        nextNode.isSelfClosing ||
+        /**
+         *     123<span
+         *             ~
+         *       attr
+         */
+        (nextNode.kind === "element" && nextNode.attrs.length > 0))) ||
+    /**
+     *     <img
+     *       src="long"
+     *                 ~
+     *     />123
+     */
+    (prevNode.kind === "element" &&
+      prevNode.isSelfClosing &&
+      needsToBorrowPrevClosingTagEndMarker(nextNode))
+  ) {
+    return "";
+  }
+
+  if (
+    !nextNode.isLeadingSpaceSensitive ||
+    preferHardlineAsLeadingSpaces(nextNode) ||
+    /**
+     *       Want to write us a letter? Use our<a
+     *         ><b><a>mailing address</a></b></a
+     *                                          ~
+     *       >.
+     */
+    (needsToBorrowPrevClosingTagEndMarker(nextNode) &&
+      prevNode.lastChild &&
+      needsToBorrowParentClosingTagStartMarker(prevNode.lastChild) &&
+      prevNode.lastChild.lastChild &&
+      needsToBorrowParentClosingTagStartMarker(prevNode.lastChild.lastChild))
+  ) {
+    return hardline;
+  }
+
+  if (nextNode.hasLeadingSpaces) {
+    return line;
+  }
+
+  return softline;
 }
 
 function printChildren(path, options, print) {
diff --git a/src/language-html/printer-html.js b/src/language-html/printer-html.js
index c60e1fc13..ffd261275 100644
--- a/src/language-html/printer-html.js
+++ b/src/language-html/printer-html.js
@@ -10,7 +10,7 @@ import {
   line,
   replaceEndOfLine,
 } from "../document/index.js";
-import getPreferredQuote from "../utilities/get-preferred-quote.js";
+import { getPreferredQuote } from "../utilities/get-preferred-quote.js";
 import htmlWhitespace from "../utilities/html-whitespace.js";
 import UnexpectedNodeError from "../utilities/unexpected-node-error.js";
 import clean from "./clean.js";
diff --git a/src/language-js/print/jsx.js b/src/language-js/print/jsx.js
index e265ff172..6426cb746 100644
--- a/src/language-js/print/jsx.js
+++ b/src/language-js/print/jsx.js
@@ -18,7 +18,7 @@ import {
   printComments,
   printDanglingComments,
 } from "../../main/comments/print.js";
-import getPreferredQuote from "../../utilities/get-preferred-quote.js";
+import { getPreferredQuote } from "../../utilities/get-preferred-quote.js";
 import UnexpectedNodeError from "../../utilities/unexpected-node-error.js";
 import WhitespaceUtilities from "../../utilities/whitespace-utilities.js";
 import needsParentheses from "../parentheses/needs-parentheses.js";
diff --git a/src/language-markdown/print/mdast.js b/src/language-markdown/print/mdast.js
index 33a1a33e5..32c74ede1 100644
--- a/src/language-markdown/print/mdast.js
+++ b/src/language-markdown/print/mdast.js
@@ -16,7 +16,7 @@ import {
 } from "../../document/index.js";
 import getMaxContinuousCount from "../../utilities/get-max-continuous-count.js";
 import getMinNotPresentContinuousCount from "../../utilities/get-min-not-present-continuous-count.js";
-import getPreferredQuote from "../../utilities/get-preferred-quote.js";
+import { getPreferredQuote } from "../../utilities/get-preferred-quote.js";
 import UnexpectedNodeError from "../../utilities/unexpected-node-error.js";
 import { locEnd, locStart } from "../loc.js";
 import {
diff --git a/src/main/comments/print.js b/src/main/comments/print.js
index 517bc9b11..4db1d31ca 100644
--- a/src/main/comments/print.js
+++ b/src/main/comments/print.js
@@ -15,7 +15,7 @@ import skipNewline from "../../utilities/skip-newline.js";
 
 /**
  * @import AstPath from "../../common/ast-path.js"
- * @import {Doc} from "../../document/index.js"
+ * @import {Doc, HardLine, Line} from "../../document/index.js"
  */
 
 const returnTrue = () => true;
@@ -36,13 +36,15 @@ function printLeadingComment(path, options) {
   // Leading block comments should see if they need to stay on the
   // same line or not.
   if (isBlock) {
-    const lineBreak = hasNewline(originalText, locEnd(comment))
-      ? hasNewline(originalText, locStart(comment), {
-          backwards: true,
-        })
-        ? hardline
-        : line
-      : " ";
+    /** @type {HardLine | Line | " "} */
+    let lineBreak = " ";
+    if (hasNewline(originalText, locEnd(comment))) {
+      if (hasNewline(originalText, locStart(comment), { backwards: true })) {
+        lineBreak = hardline;
+      } else {
+        lineBreak = line;
+      }
+    }
 
     parts.push(lineBreak);
   } else {
diff --git a/src/utilities/get-preferred-quote.js b/src/utilities/get-preferred-quote.js
index dbf2ebac4..7b2df5234 100644
--- a/src/utilities/get-preferred-quote.js
+++ b/src/utilities/get-preferred-quote.js
@@ -52,4 +52,4 @@ function getPreferredQuote(text, preferredQuoteOrPreferSingleQuote) {
     .character;
 }
 
-export default getPreferredQuote;
+export { DOUBLE_QUOTE, getPreferredQuote, SINGLE_QUOTE };
diff --git a/src/utilities/make-string.js b/src/utilities/make-string.js
index 77dc7b5b8..44178d74a 100644
--- a/src/utilities/make-string.js
+++ b/src/utilities/make-string.js
@@ -1,3 +1,5 @@
+import { DOUBLE_QUOTE, SINGLE_QUOTE } from "./get-preferred-quote.js";
+
 /** @import {Quote} from "./get-preferred-quote.js" */
 
 // Matches _any_ escape and unescaped quotes (both single and double).
@@ -10,7 +12,8 @@ const REGEX = /\\(["'\\])|(["'])/gu;
  * @returns {string}
  */
 function makeString(rawText, enclosingQuote) {
-  const otherQuote = enclosingQuote === '"' ? "'" : '"';
+  const otherQuote =
+    enclosingQuote === DOUBLE_QUOTE ? SINGLE_QUOTE : DOUBLE_QUOTE;
 
   // Escape and unescape single and double quotes as needed to be able to
   // enclose `rawText` with `enclosingQuote`.
diff --git a/src/utilities/print-string.js b/src/utilities/print-string.js
index f8a565a35..e6ac91374 100644
--- a/src/utilities/print-string.js
+++ b/src/utilities/print-string.js
@@ -1,5 +1,9 @@
 import * as assert from "#universal/assert";
-import getPreferredQuote from "./get-preferred-quote.js";
+import {
+  DOUBLE_QUOTE,
+  getPreferredQuote,
+  SINGLE_QUOTE,
+} from "./get-preferred-quote.js";
 import makeString from "./make-string.js";
 
 /** @import {Quote} from "./get-preferred-quote.js" */
@@ -12,7 +16,9 @@ function printString(raw, options) {
   const rawContent = raw.slice(1, -1);
 
   /** @type {Quote} */
-  const enclosingQuote =
+  let enclosingQuote;
+
+  if (
     options.parser === "json" ||
     options.parser === "jsonc" ||
     options.parser === "json-stringify" ||
@@ -25,10 +31,13 @@ function printString(raw, options) {
     (options.parser === "json5" &&
       options.quoteProps === "preserve" &&
       !options.singleQuote)
-      ? '"'
-      : options.__isInHtmlAttribute
-        ? "'"
-        : getPreferredQuote(rawContent, options.singleQuote);
+  ) {
+    enclosingQuote = DOUBLE_QUOTE;
+  } else if (options.__isInHtmlAttribute) {
+    enclosingQuote = SINGLE_QUOTE;
+  } else {
+    enclosingQuote = getPreferredQuote(rawContent, options.singleQuote);
+  }
 
   const originalQuote = raw.charAt(0);
 
diff --git a/src/utilities/public.js b/src/utilities/public.js
index 444db8690..64b788afd 100644
--- a/src/utilities/public.js
+++ b/src/utilities/public.js
@@ -142,7 +142,7 @@ export { default as getAlignmentSize } from "./get-alignment-size.js";
 export { default as getIndentSize } from "./get-indent-size.js";
 export { default as getMaxContinuousCount } from "./get-max-continuous-count.js";
 export { default as getNextNonSpaceNonCommentCharacter } from "./get-next-non-space-non-comment-character.js";
-export { default as getPreferredQuote } from "./get-preferred-quote.js";
+export { getPreferredQuote } from "./get-preferred-quote.js";
 export { default as getStringWidth } from "./get-string-width.js";
 export { default as hasNewline } from "./has-newline.js";
 export { default as hasNewlineInRange } from "./has-newline-in-range.js";
diff --git a/tests/config/utilities/create-snapshot.js b/tests/config/utilities/create-snapshot.js
index 7b0a79ef0..34ca8f54e 100644
--- a/tests/config/utilities/create-snapshot.js
+++ b/tests/config/utilities/create-snapshot.js
@@ -10,11 +10,15 @@ function printSeparator(description = "") {
 }
 
 function stringify(value) {
-  return value === Number.POSITIVE_INFINITY
-    ? "Infinity"
-    : Array.isArray(value)
-      ? `[${value.map((v) => JSON.stringify(v)).join(", ")}]`
-      : JSON.stringify(value);
+  if (value === Number.POSITIVE_INFINITY) {
+    return "Infinity";
+  }
+
+  if (Array.isArray(value)) {
+    return `[${value.map((v) => JSON.stringify(v)).join(", ")}]`;
+  }
+
+  return JSON.stringify(value);
 }
 
 function printOptions(options) {
diff --git a/tests/config/utilities/stringify-options-for-title.js b/tests/config/utilities/stringify-options-for-title.js
index d25c671d5..531fc0650 100644
--- a/tests/config/utilities/stringify-options-for-title.js
+++ b/tests/config/utilities/stringify-options-for-title.js
@@ -1,11 +1,15 @@
 function stringifyOptions(options) {
-  const string = JSON.stringify(options || {}, (key, value) =>
-    key === "plugins" || key === "errors"
-      ? undefined
-      : value === Number.POSITIVE_INFINITY
-        ? "Infinity"
-        : value,
-  );
+  const string = JSON.stringify(options || {}, (key, value) => {
+    if (key === "plugins" || key === "errors") {
+      return;
+    }
+
+    if (value === Number.POSITIVE_INFINITY) {
+      return "Infinity";
+    }
+
+    return value;
+  });
 
   return string === "{}" ? "" : string;
 }
diff --git a/tests/integration/__tests__/support-info.js b/tests/integration/__tests__/support-info.js
index 3a354aa32..58822b0d7 100644
--- a/tests/integration/__tests__/support-info.js
+++ b/tests/integration/__tests__/support-info.js
@@ -15,18 +15,20 @@ async function getCoreInfo() {
   );
 
   const options = Object.fromEntries(
-    supportInfo.options.map((option) => [
-      option.name,
-      {
-        type: option.type,
-        default: option.default,
-        ...(option.type === "int"
-          ? { range: option.range }
-          : option.type === "choice"
-            ? { choices: option.choices.map((choice) => choice.value) }
-            : null),
-      },
-    ]),
+    supportInfo.options.map((rawOption) => {
+      const option = {
+        type: rawOption.type,
+        default: rawOption.default,
+      };
+
+      if (rawOption.type === "int") {
+        option.range = rawOption.range;
+      } else if (rawOption.type === "choice") {
+        option.choices = rawOption.choices.map((choice) => choice.value);
+      }
+
+      return [rawOption.name, option];
+    }),
   );
 
   return { languages, options };
diff --git a/tests/integration/cli-worker.js b/tests/integration/cli-worker.js
index a70c802bb..b435e929a 100644
--- a/tests/integration/cli-worker.js
+++ b/tests/integration/cli-worker.js
@@ -38,23 +38,30 @@ async function mockImplementations(options) {
 
   cliMockable.mockImplementations({
     clearStreamText(stream, text) {
-      const streamName =
-        stream === process.stdout
-          ? "process.stdout"
-          : stream === process.stderr
-            ? "process.stderr"
-            : "unknown stream";
+      let streamName;
+      if (stream === process.stdout) {
+        streamName = "process.stdout";
+      } else if (stream === process.stderr) {
+        streamName = "process.stderr";
+      } else {
+        streamName = "unknown stream";
+      }
       stream.write(`\n[[Clear text(${streamName}): ${text}]]\n`);
     },
     // Time measure in format test
     getTimestamp: () => 0,
     isCI: () => Boolean(options.ci),
-    isStreamTTY: (stream) =>
-      stream === process.stdin
-        ? Boolean(options.isTTY)
-        : stream === process.stdout
-          ? Boolean(options.stdoutIsTTY)
-          : stream.isTTY,
+    isStreamTTY(stream) {
+      if (stream === process.stdin) {
+        return Boolean(options.isTTY);
+      }
+
+      if (stream === process.stdout) {
+        return Boolean(options.stdoutIsTTY);
+      }
+
+      return stream.isTTY;
+    },
     // eslint-disable-next-line require-await
     async writeFormattedFile(filename, content) {
       filename = normalizeToPosix(path.relative(process.cwd(), filename));
diff --git a/website/playground/Playground.jsx b/website/playground/Playground.jsx
index 91ad47206..a62335c06 100644
--- a/website/playground/Playground.jsx
+++ b/website/playground/Playground.jsx
@@ -565,11 +565,15 @@ function getReportLink(reportBody) {
 }
 
 function getSecondFormat(formatted, reformatted) {
-  return formatted === ""
-    ? ""
-    : formatted === reformatted
-      ? "✓ Second format is unchanged."
-      : (reformatted ?? "");
+  if (formatted === "") {
+    return "";
+  }
+
+  if (formatted === reformatted) {
+    return "✓ Second format is unchanged.";
+  }
+
+  return reformatted ?? "";
 }
 
 export default Playground;
diff --git a/website/static/worker.mjs b/website/static/worker.mjs
index c5c92cf63..52b83cf95 100644
--- a/website/static/worker.mjs
+++ b/website/static/worker.mjs
@@ -70,14 +70,21 @@ function serializeError(error) {
 function serializeAst(ast) {
   return JSON.stringify(
     ast,
-    (_, value) =>
-      value instanceof Error
-        ? serializeError(value)
-        : typeof value === "bigint"
-          ? `BigInt('${String(value)}')`
-          : typeof value === "symbol"
-            ? String(value)
-            : value,
+    (_, value) => {
+      if (value instanceof Error) {
+        return serializeError(value);
+      }
+
+      if (typeof value === "bigint") {
+        return `BigInt('${String(value)}')`;
+      }
+
+      if (typeof value === "symbol") {
+        return String(value);
+      }
+
+      return value;
+    },
     2,
   );
 }