Microsoft/TypeScript

Comment like jsx text emitted twice when preserve enabled

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#61.860 aberto em 13 de jun. de 2025

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BugDomain: JSX/TSXHelp Wanted

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Description

🔎 Search Terms

comment like jsx text, preserve jsx

🕗 Version & Regression Information

  • This is the behavior in every version I tried, and I reviewed the FAQ for entries about _________

⏯ Playground Link

https://www.typescriptlang.org/play/?jsx=1#code/GYVwdgxgLglg9mABAQQA6oBQEpEG8C+AUMRAgM5SIBWZAHogLyIA8aqAfAPQBUiYcibp1w9EARkGdxAJgDMiUdMn5R-Sc05t2AbkJA

💻 Code

function App() {}
const jsx = <App>/* no */{/* 1 */ 123 /* 2 */}/* no */</App>;

🙁 Actual behavior

These duplicate sections will be rendered in the JSX text output:

"use strict";
function App() { }
const jsx = <App> /* no *//* no */{/* 1 */123 /* 2 */} /* no *//* no */</App>
//                ~~~~~~~                              ~~~~~~~

🙂 Expected behavior

"use strict";
function App() { }
- const jsx = <App> /* no *//* no */{/* 1 */123 /* 2 */} /* no *//* no */</App>
+ const jsx = <App> /* no */{/* 1 */123 /* 2 */} /* no */</App>

Additional information about the issue

No response

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