Minifying scripts using GruntJs

问题

I have a couple js files that I can seem to get GruntJs to concat/minify properly.

If I do each individually they work fine.

If I combine separately then attempt to minify just the combined file it doesn't work either.

Here is the error:

Any ideas on how to fix this? Or maybe what is causing it?

回答1:

There is currently a problem with GruntJs and the BOM I mentioned in the comment of Derick's answer.

You can find the issue here: https://github.com/cowboy/grunt/issues/218#issuecomment-6329807

In Visual Studio to manually remove the BOM

Open the file > File > Advanced Save Options > Set the encoding to "Unicode without signature" > "Ok" That should remove it.

回答2:

To clarify and make sure I understand:

You have 2 separate files. We'll call them File1 and File2
If you minify File1 by itself, it works fine
If you minify File2 by itself, it works fine
If you concat File1 and File2 together, then minify, you get this error

Is that correct?

If so, you probably have a missing semi-colon somewhere and are running in to errors caused by ASI (automatic semi-colon insertion).

(note that this is a guess based on the limited info you've provided. You would need to post a lot more detail about the files, the code, etc, to really give a better answer)

回答3:

During concatenation of File1 and File2 u need add a seperator : ';' in your options

For example ,

concat : {
             options : {
                  seperator  :';'
             },
             dist : {
                 src : [ 'path/to/src/*.js'],
                 dest :  'path/to/dest.js'
             }
   }

来源：https://stackoverflow.com/questions/10951354/minifying-scripts-using-gruntjs

标签

javascript

minify

uglifyjs

gruntjs