[Not really a bug] change in es5 output from string interpolation #48776

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bigopon opened this issue Apr 20, 2022 · 2 comments

bigopon commented Apr 20, 2022 •

edited

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Bug Report

🔎 Search Terms

string concat

🕗 Version & Regression Information

4.5.x

This is not a crash
This changed between versions 4.4.x and 4.5.x

⏯ Playground Link

https://www.typescriptlang.org/play?target=1&ts=4.5.5#code/G4QwTgBCELwQBgEgN4CMC+AHAHvIA

💻 Code

var a = `${b}px`

🙁 Actual behavior

output:

"use strict";
var a = "".concat(b, "px");

🙂 Expected behavior

"use strict";
var a = b + "px";

Contributor

Josh-Cena commented Apr 20, 2022

This is expected. See #45304

Author

bigopon commented Apr 20, 2022

@Josh-Cena I see. thanks for the pointer. I guess if anyone is concerned by .concat(), they can use + instead of template literal.

bigopon closed this as completed

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