Minify JavaScript with terser.
The latest version of gulp-minify is using terser to minify files, this may cause some incompatible issues with earlier language versions for now, see #27.
So gulp-minify@es5 is for the earlier language versions if your project is not ready for the ECMAScript 6 yet.
Install package with NPM and add it to your development dependencies:
npm install --save-dev gulp-minify
Basic usage: the following minifies every *.js and *.mjs files to *-min.js and *-min.mjs respectively. Note that the original files are preserved.
const minify = require('gulp-minify');
gulp.task('compress', function() {
gulp.src(['lib/*.js', 'lib/*.mjs'])
.pipe(minify())
.pipe(gulp.dest('dist'))
});Options can be added to control more finely what's happening, for example:
const minify = require('gulp-minify');
gulp.task('compress', function() {
gulp.src('lib/*.js')
.pipe(minify({
ext:{
src:'-debug.js',
min:'.js'
},
exclude: ['tasks'],
ignoreFiles: ['.combo.js', '-min.js']
}))
.pipe(gulp.dest('dist'))
});-
extAn object that specifies output src and minified file extensions.-
srcThe suffix string of the filenames that output source files ends with.
-
min- When string: The suffix string of the filenames that output minified files ends with.
- When Array: The regex expressions to be replaced with input filenames. For example:
[/\.(.*)-source\.js$/, '$1.js']
-
-
excludeWill not minify files in the dirs.
-
noSourceWill not output the source code in the dest dirs. -
ignoreFilesWill not minify files which matches the pattern.
-
manglePass
falseto skip mangling names. -
outputPass an object if you wish to specify additional output options. The defaults are optimized for best compression.
-
compressPass an object to specify custom compressor options. Pass
falseto skip compression completely. -
preserveCommentsA convenience option for
options.output.comments. Defaults to preserving no comments.-
allPreserve all comments in code blocks
-
somePreserve comments that start with a bang (
!) or include a Closure Compiler directive (@preserve,@license,@cc_on) -
functionSpecify your own comment preservation function. You will be passed the current node and the current comment and are expected to return either
trueorfalse.
-
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