From f723253f784ef4f0dab782e04dc18e62ee4df65d Mon Sep 17 00:00:00 2001 From: joaquinelio Date: Sun, 28 Mar 2021 00:08:17 -0300 Subject: [PATCH] transpiler def --- 1-js/03-code-quality/06-polyfills/article.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/1-js/03-code-quality/06-polyfills/article.md b/1-js/03-code-quality/06-polyfills/article.md index af38faad..9d119132 100644 --- a/1-js/03-code-quality/06-polyfills/article.md +++ b/1-js/03-code-quality/06-polyfills/article.md @@ -22,7 +22,7 @@ Here, in this chapter, our purpose is to get the gist of how they work, and thei ## Transpilers -A [transpiler](https://en.wikipedia.org/wiki/Source-to-source_compiler) is a special piece of software that can parse ("read and understand") modern code, and rewrite it using older syntax constructs, so that the result would be the same. +A [transpiler](https://en.wikipedia.org/wiki/Source-to-source_compiler) is a special piece of software that can parse ("read and understand") modern code, and rewrite it using syntax constructs that the target engine (even oudated ones) can run. E.g. JavaScript before year 2020 didn't have the "nullish coalescing operator" `??`. So, if a visitor uses an outdated browser, it may fail to understand the code like `height = height ?? 100`.