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authorAlex Lam S.L <alexlamsl@gmail.com>2020-12-17 10:23:41 +0000
committerGitHub <noreply@github.com>2020-12-17 18:23:41 +0800
commita96f087ac33b6d18d5ffa3cacd39dd693defb7cf (patch)
treed670eab7971cb7bf27e029319db0357ff38e51d5 /README.md
parent75e9fd84174eaa8bf97975ad254fe06958564547 (diff)
downloadtracifyjs-a96f087ac33b6d18d5ffa3cacd39dd693defb7cf.tar.gz
tracifyjs-a96f087ac33b6d18d5ffa3cacd39dd693defb7cf.zip
support arrow function (#4385)
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index c65229fa..4753b4c2 100644
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+++ b/README.md
@@ -1209,3 +1209,11 @@ To allow for better optimizations, the compiler makes various assumptions:
`function({}, arguments) {}` will result in `SyntaxError` in earlier versions
of Chrome and Node.js - UglifyJS may modify the input which in turn may
suppress those errors.
+- Later versions of JavaScript will throw `SyntaxError` with the following:
+ ```js
+ a => {
+ let a;
+ };
+ // SyntaxError: Identifier 'a' has already been declared
+ ```
+ UglifyJS may modify the input which in turn may suppress those errors.