Make use of some ES2015 features

index.js

@@ -1,6 +1,8 @@
-var Walker = require('node-source-walk');
-var gonzales = require('gonzales-pe');
-var debug = require('debug')('detective-less');
+'use strict';
+
+const Walker = require('node-source-walk');
+const gonzales = require('gonzales-pe');
+const debug = require('debug')('detective-less');
 
 /**
  * Extract the @import statements from a given less file's content
@@ -12,8 +14,8 @@ module.exports = function detective(fileContent) {
  if (typeof fileContent === 'undefined') { throw new Error('content not given'); }
  if (typeof fileContent !== 'string') { throw new Error('content is not a string'); }
 
- var dependencies = [];
- var ast;
+ let dependencies = [];
+ let ast;
 
  try {
  debug('content: ' + fileContent);
@@ -25,7 +27,7 @@ module.exports = function detective(fileContent) {
 
  detective.ast = ast;
 
- var walker = new Walker();
+ const walker = new Walker();
 
  walker.walk(ast, function(node) {
  if (!isImportStatement(node)) { return; }
@@ -40,11 +42,11 @@ function isImportStatement(node) {
  if (!node || node.type !== 'atrule') { return false; }
  if (!node.content.length || node.content[0].type !== 'atkeyword') { return false; }
 
- var atKeyword = node.content[0];
+ const atKeyword = node.content[0];
 
  if (!atKeyword.content.length) { return false; }
 
- var importKeyword = atKeyword.content[0];
+ const importKeyword = atKeyword.content[0];
 
  if (importKeyword.type !== 'ident' || importKeyword.content !== 'import') { return false; }
 

test/test.js

@@ -1,5 +1,7 @@
-var detective = require('../');
-var assert = require('assert');
+'use strict';
+
+const detective = require('../');
+const assert = require('assert');
 
 describe('detective-less', function() {
  function test(src, deps, opts) {