I've been looking around for some .babelrc
option to remove comments from the transpiled code, but I haven't had any luck. I tried this:
{
"comments": false
}
as well as
{
"options": {
"comments": false
}
}
and neither works. I'm out of ideas, and I was unable to find any decent documentation anywhere.
Using .babelrc
is always recommended:
{
comments: false
}
If using babel-cli
, you can use the --no-comments
options to achieve the same behaviour.
The latest version of babel-cli
includes tests that check for this behaviour to be implemented correctly .
EDIT
It does look like a problem with babel CLI ignoring the comments in .babelrc
, a workaround is to use the --no-comments
option.
In your package.json
"build": "babel ./index.js --out-dir ./dist/index.js --no-comments"
To know all the options of babel-cli
./node_modules/.bin/babel -h
ORIGINAL
Where are you running babel from? Gulp?
Check that you have the .babelrc
file in the same or a parent directory of the files beign transpiled
From babeljs.io :
Babel will look for a .babelrc in the current directory of the file being transpiled. If one does not exist, it will travel up the directory tree until it finds either a .babelrc, or a package.json with a "babel": {} hash within.
I have a project with this structure:
The relevant task in gulpfile.js
gulp.task('babel', () => {
return gulp.src('index.js')
.pipe(babel({
presets: ['es2015']
}))
.pipe(gulp.dest('./dist/'));
});
Contents of .babelrc
{
"comments": false
}
The comments are being succesfully removed.
Also check if you're not setting the comments
option to true in your gulpfile, for example.
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