Concat and uglify in grunt

Question

I'm using grunt and was wondering what the best practice was regarding concat and uglify?

Which should I use first?

Should I concat the file and then uglify or uglify the file then concat?

score 2 · Accepted Answer · answered Apr 08 '14 at 12:19

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It doesn't matter. Running uglify after concat will remove any introduced line breaks, but the size of the resulting file should be pretty much the same.

answered Apr 08 '14 at 12:19

jgillich

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score 1 · Answer 2 · edited May 23 '17 at 12:06

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If all you need is to combine and compress JS files, uglify can do that by itself.

You should consider the performance implications of running concat before uglify when the sourcemap option is enabled.

See my detailed test case in this similar question:
https://stackoverflow.com/a/27452514/2048613

edited May 23 '17 at 12:06

Community

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answered Dec 12 '14 at 22:01

Alex Ilyaev

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Concat and uglify in grunt

2 Answers2