Uglifier::Error:

Uglifier::Error: from ****gems/uglifier-4.2.0/lib/uglifier.rb:291:in `parse_result’

To reproduce the error, just paste the code in your file and run Uglifier.new(harmony: true).compile(File.read("test.js"))

function f(){ return 1;};
var y = 42;

y = f();

const {p} = {p: 42};

But these code won’t raise this error:

function f(){ return 1;};
var y = 42;

y = f();
console.log(123)
const {p} = {p: 42};

function f(){ return 1;};
var y = 42;
const {p} = {p: 42};
y = f();

Any one knows the reason? I am using uglifier (4.2.0)

[netelix]

Same issue… I went back to Uglifier 4.1.0 in my Gemfile and it fixed it. Thanks for the tip

gem 'uglifier', '= 4.1.0'

[longpaid]

Getting the same error. Had to fork the gem, re-package the harmony branch of uglify, then copy it into the fork. Seems to be working now - not sure what the cause is.

had the same same issue, had to reference your version and it worked for me too, thank you 👍