Replace 'var ' with 'const '

src/diagrams/example/example.spec.js

@@ -8,13 +8,11 @@ describe('when parsing an info graph it', function () {
   })
 
   it('should handle an info definition', function () {
-    var str = 'info\nsay: hello'
-
+    const str = 'info\nsay: hello'
     parser.parse(str)
   })
   it('should handle an showMessage statement definition', function () {
-    var str = 'info\nshowInfo'
-
+    const str = 'info\nshowInfo'
     parser.parse(str)
   })
 })

src/diagrams/example/exampleDb.js

@@ -1,7 +1,7 @@
 import { logger } from '../../logger'
 
-var message = ''
-var info = false
+let message = ''
+let info = false
 
 export const setMessage = function (txt) {
   logger.debug('Setting message to: ' + txt)

src/diagrams/example/exampleRenderer.js

@@ -10,17 +10,16 @@ import { logger } from '../../logger'
  * @param id
  */
 export const draw = function (txt, id, ver) {
-  var parser
-  parser = exampleParser.parser
+  const parser = exampleParser.parser
   parser.yy = db
   logger.debug('Renering example diagram')
   // Parse the graph definition
   parser.parse(txt)
 
   // Fetch the default direction, use TD if none was found
-  var svg = d3.select('#' + id)
+  const svg = d3.select('#' + id)
 
-  var g = svg.append('g')
+  const g = svg.append('g')
 
   g.append('text')      // text label for the x axis
     .attr('x', 100)