Merge pull request #92 from LinusU/prefer-const

Prefer const over let

Author: zrrrzzt

index.js

@@ -6,17 +6,17 @@ const filterData = require('./lib/filter-data')
 module.exports = function (options, callback) {
   return new Promise(function (resolve, reject) {
     if (!options) {
-      let error = new Error('Missing required input: options object')
+      const error = new Error('Missing required input: options object')
       return callback ? callback(error, null) : reject(error)
     }
 
     if (!options.url && !options.data) {
-      let error = new Error('Missing required params: url or data')
+      const error = new Error('Missing required params: url or data')
       return callback ? callback(error, null) : reject(error)
     }
 
     if (options.url && !validUrl.isWebUri(options.url)) {
-      let error = new Error('Invalid url')
+      const error = new Error('Invalid url')
       return callback ? callback(error, null) : reject(error)
     }
 
@@ -29,7 +29,7 @@ module.exports = function (options, callback) {
       }
 
       if (response && response.statusCode !== 200) {
-        let error = new Error('Validator returned unexpected statuscode: ' + response.statusCode)
+        const error = new Error('Validator returned unexpected statuscode: ' + response.statusCode)
         return callback ? callback(error, null) : reject(error)
       }
 

lib/config.js

@@ -3,7 +3,7 @@ module.exports = function (options) {
   const userAgent = `${pkg.name} v ${pkg.version}`
   const ignore = options.ignore
   const format = ignore ? 'text' : options.format || 'json'
-  let newOpts = {
+  const newOpts = {
     uri: 'https://validator.w3.org/nu/',
     headers: Object.assign({
       'User-Agent': userAgent

lib/filter-data.js

@@ -2,7 +2,7 @@ module.exports = function (data, ignore) {
   const list = data.split('\n')
   const filters = Array.isArray(ignore) ? ignore : [ignore]
   let errors = false
-  let results = []
+  const results = []
   list.forEach(function (line, index) {
     if (line.startsWith('Error') && filters.indexOf(line) === -1) {
       results.push(line)