var gulp = require('gulp');
var checkConstants = require('gulp-check-constants');
 
//example with basic css copying
gulp.task('js', function() {
    gulp.src('./src/js/**/*.js')
        .pipe(checkConstants())
        .pipe(gulp.dest('./public/js'));
});
 
//example with custom options
gulp.task('js', function() {
    gulp.src('./src/js/**/*.js')
        .pipe(checkConstants({
                enforceConst: true,
                ignore: [0, 1, 2, 3, 10]
        }))
        .pipe(gulp.dest('./public/js'));
});