ES6-ify and lint all JS files. (#79)

* Enforce LF

* ES6-ify and lint all JS files.

8 files changed, 82 insertions, 67 deletions

diff --git a/examples/less/gulp/gulpfile.js b/examples/less/gulp/gulpfile.js
index 37e7afc..51600f9 100644
--- a/examples/less/gulp/gulpfile.js
+++ b/examples/less/gulp/gulpfile.js
@@ -1,14 +1,14 @@
 'use strict';
 
-const gulp = require('gulp'),
-  less = require('gulp-less');
+const gulp = require('gulp');
+const less = require('gulp-less');
 
-gulp.task('build', function () {
+gulp.task('build', () => {
   return gulp.src('./src/**/*.less')
     .pipe(less())
     .pipe(gulp.dest('./dest'));
 });
 
-gulp.task('watch', function () {
+gulp.task('watch', () => {
   gulp.watch('./src/**/*.less', ['build']);
 });
diff --git a/examples/less/node/index.js b/examples/less/node/index.js
index c6269fc..b263c93 100644
--- a/examples/less/node/index.js
+++ b/examples/less/node/index.js
@@ -1,24 +1,27 @@
-const fs = require('fs'),
-  less = require('less'),
-  str = fs.readFileSync(__dirname + '/src/main.less', 'utf8');
+'use strict';
 
-less
-  .render(
-    str,
-    {paths: [__dirname + '/src']}
-  )
-  .then(
-    function (output) {
-      fs.writeFile(__dirname + '/dest/main.css', output.css, function (err) {
-        if (!err) {
-          console.log('Responsive font sizes generated.');
-        }
-        else {
-          throw err;
-        }
-      });
-    },
-    function (error) {
-      throw error;
-    }
-  );
+const fs = require('fs');
+const path = require('path');
+const less = require('less');
+
+const str = fs.readFileSync(path.join(__dirname, '/src/main.less'), 'utf8');
+
+less.render(
+  str,
+  {
+    paths: [path.join(__dirname, '/src')]
+  }
+).then(
+  output => {
+    fs.writeFile(path.join(__dirname, '/dest/main.css'), output.css, err => {
+      if (err) {
+        throw err;
+      } else {
+        console.log('Responsive font sizes generated.');
+      }
+    });
+  },
+  error => {
+    throw error;
+  }
+);
diff --git a/examples/postcss/gulp/gulpfile.js b/examples/postcss/gulp/gulpfile.js
index f4111d7..9c56767 100644
--- a/examples/postcss/gulp/gulpfile.js
+++ b/examples/postcss/gulp/gulpfile.js
@@ -1,6 +1,9 @@
+'use strict';
+
 const gulp = require('gulp');
 const postcss = require('gulp-postcss');
 const rfs = require('../../..');
+
 const options = {
   twoDimensional: false,
   baseFontSize: 20,
@@ -21,6 +24,6 @@ gulp.task('build', () => {
     .pipe(gulp.dest('./dest'));
 });
 
-gulp.task('watch', function () {
+gulp.task('watch', () => {
   gulp.watch('./src/**/*.css', ['build']);
 });
diff --git a/examples/postcss/node/index.js b/examples/postcss/node/index.js
index f63b047..8ab9a1e 100644
--- a/examples/postcss/node/index.js
+++ b/examples/postcss/node/index.js
@@ -1,7 +1,11 @@
+'use strict';
+
 const fs = require('fs');
+const path = require('path');
 const postcss = require('postcss');
 const rfs = require('../../..');
-const css = fs.readFileSync(__dirname + '/src/main.css', 'utf8');
+
+const css = fs.readFileSync(path.join(__dirname, '/src/main.css'), 'utf8');
 const options = {
   twoDimensional: false,
   baseFontSize: 20,
@@ -16,11 +20,10 @@ const options = {
 
 const processedCss = postcss(rfs(options)).process(css).css;
 
-fs.writeFile(__dirname + '/dest/main.css', processedCss, (err) => {
+fs.writeFile(path.join(__dirname, '/dest/main.css'), processedCss, err => {
   if (err) {
     throw err;
-  }
-  else {
+  } else {
     console.log('Responsive font sizes generated.');
   }
 });
diff --git a/examples/scss/gulp/gulpfile.js b/examples/scss/gulp/gulpfile.js
index 62782e9..f46a31d 100644
--- a/examples/scss/gulp/gulpfile.js
+++ b/examples/scss/gulp/gulpfile.js
@@ -1,14 +1,14 @@
 'use strict';
 
-const gulp = require('gulp'),
-  sass = require('gulp-sass');
+const gulp = require('gulp');
+const sass = require('gulp-sass');
 
-gulp.task('build', function () {
+gulp.task('build', () => {
   return gulp.src('./src/**/*.scss')
     .pipe(sass().on('error', sass.logError))
     .pipe(gulp.dest('./dest'));
 });
 
-gulp.task('watch', function () {
+gulp.task('watch', () => {
   gulp.watch('./src/**/*.scss', ['build']);
 });
diff --git a/examples/scss/node/index.js b/examples/scss/node/index.js
index dde62f0..77baa8e 100644
--- a/examples/scss/node/index.js
+++ b/examples/scss/node/index.js
@@ -1,22 +1,24 @@
+'use strict';
+
 const fs = require('fs');
+const path = require('path');
 const sass = require('node-sass');
 
 sass.render({
-    file: __dirname + '/src/main.scss', outFile: __dirname + '/dest/main.css',
-  }, function (error, result) { // node-style callback from v3.0.0 onwards
-    if (!error) {
-      // No errors during the compilation, write this result on the disk
-      fs.writeFile(__dirname + '/dest/main.css', result.css, function (err) {
-        if (!err) {
-          console.log('Responsive font sizes generated.');
-        }
-        else {
-          throw err;
-        }
-      });
-    }
-    else {
-      throw error;
-    }
+  file: path.join(__dirname, '/src/main.scss'),
+  outFile: path.join(__dirname, '/dest/main.css')
+}, (error, result) => { // Node-style callback from v3.0.0 onwards
+  if (error) {
+    throw error;
+  } else {
+    // No errors during the compilation, write this result on the disk
+    fs.writeFile(path.join(__dirname, '/dest/main.css'), result.css, err => {
+      if (err) {
+        throw err;
+      } else {
+        console.log('Responsive font sizes generated.');
+      }
+    });
   }
+}
 );
diff --git a/examples/stylus/gulp/gulpfile.js b/examples/stylus/gulp/gulpfile.js
index fb5d134..3ea42bd 100644
--- a/examples/stylus/gulp/gulpfile.js
+++ b/examples/stylus/gulp/gulpfile.js
@@ -1,14 +1,14 @@
 'use strict';
 
-const gulp = require('gulp'),
-  stylus = require('gulp-stylus');
+const gulp = require('gulp');
+const stylus = require('gulp-stylus');
 
-gulp.task('build', function () {
+gulp.task('build', () => {
   return gulp.src('./src/**/*.styl')
     .pipe(stylus())
     .pipe(gulp.dest('./dest'));
 });
 
-gulp.task('watch', function () {
+gulp.task('watch', () => {
   gulp.watch('./src/**/*.styl', ['build']);
 });
diff --git a/examples/stylus/node/index.js b/examples/stylus/node/index.js
index 427bb39..62ae685 100644
--- a/examples/stylus/node/index.js
+++ b/examples/stylus/node/index.js
@@ -1,18 +1,22 @@
-const fs = require('fs'),
-  stylus = require('stylus'),
-  str = fs.readFileSync(__dirname + '/src/main.styl', 'utf8');
+'use strict';
 
-stylus.render(str, {filename: __dirname + '/src/main.styl'}, function (err, css) {
+const fs = require('fs');
+const path = require('path');
+const stylus = require('stylus');
+
+const str = fs.readFileSync(path.join(__dirname, '/src/main.styl'), 'utf8');
+
+stylus.render(str, {
+  filename: path.join(__dirname, '/src/main.styl')
+}, (err, css) => {
   if (err) {
     throw err;
-  }
-  else {
-    fs.writeFile(__dirname + '/dest/main.css', css, function (err) {
-      if (!err) {
-        console.log('Responsive font sizes generated.');
-      }
-      else {
+  } else {
+    fs.writeFile(path.join(__dirname, '/dest/main.css'), css, err => {
+      if (err) {
         throw err;
+      } else {
+        console.log('Responsive font sizes generated.');
       }
     });
   }