wxNoLazy-Chrome/gulpfile.js

var gulp = require('gulp');
uglify = require('gulp-uglify');
less = require('gulp-less');

gulp.task('js', function () {
    return gulp.src('src/js/*.js')
        .pipe(uglify())
        .pipe(gulp.dest('build'));
});

gulp.task('less', function () {
    return gulp.src('src/less/*.less')
        .pipe(less())
        .pipe(gulp.dest('build/css'));
});

gulp.task('default', gulp.series(['less','js']));