make UglifyJsPlugin more efficient

[shai32]

I think we need to add more compress options in UglifyJsPlugin plugin,
this will result in a more compact build.

my suggestion is:

new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false,
screw_ie8: true,
conditionals: true,
unused: true,
comparisons: true,
sequences: true,
dead_code: true,
evaluate: true,
if_return: true,
join_vars: true,
},
mangle: {
screw_ie8: true
},
output: {
comments: false,
screw_ie8: true
}
})

[gaearon]

Send a PR and let's discuss?

[shai32]

Ok

[Timer]

@shai32 are you still interested in this? 😄

[shai32]

Yes, Still interesting. Hopefully I will do a PR in the weekend

[shai32]

All the added options are enabled by default. See UglifyJS documentation.
So we can close this issue