upgrade standard

index.js

@@ -38,18 +38,18 @@ const UNIT_MAP = {
 /**
  * Parse a timestring
  *
- * @param  {String} string
- * @param  {String} returnUnit
+ * @param   {string} string
+ * @param   {string} returnUnit
  * @param   {Object} opts
- * @return {Number}
+ * @returns {number}
  */
 
 function parseTimestring (string, returnUnit, opts) {
   opts = Object.assign({}, DEFAULT_OPTS, opts || {})
 
   let totalSeconds = 0
-  let unitValues = getUnitValues(opts)
-  let groups = string
+  const unitValues = getUnitValues(opts)
+  const groups = string
     .toLowerCase()
     .replace(/[^.\w+-]+/g, '')
     .match(/[-+]?[0-9.]+[a-z]+/g)
@@ -59,8 +59,8 @@ function parseTimestring (string, returnUnit, opts) {
   }
 
   groups.forEach(group => {
-    let value = group.match(/[0-9.]+/g)[0]
-    let unit = group.match(/[a-z]+/g)[0]
+    const value = group.match(/[0-9.]+/g)[0]
+    const unit = group.match(/[a-z]+/g)[0]
 
     totalSeconds += getSeconds(value, unit, unitValues)
   })
@@ -80,7 +80,7 @@ function parseTimestring (string, returnUnit, opts) {
  */
 
 function getUnitValues (opts) {
-  let unitValues = {
+  const unitValues = {
     ms: 0.001,
     s: 1,
     m: 60,
@@ -98,12 +98,12 @@ function getUnitValues (opts) {
 /**
  * Get the key for a unit
  *
- * @param   {String} unit
- * @returns {String}
+ * @param   {string} unit
+ * @returns {string}
  */
 
 function getUnitKey (unit) {
-  for (let key of Object.keys(UNIT_MAP)) {
+  for (const key of Object.keys(UNIT_MAP)) {
     if (UNIT_MAP[key].indexOf(unit) > -1) {
       return key
     }
@@ -115,10 +115,10 @@ function getUnitKey (unit) {
 /**
  *  Get the number of seconds for a value, based on the unit
  *
- * @param   {Number} value
- * @param   {String} unit
+ * @param   {number} value
+ * @param   {string} unit
  * @param   {Object} unitValues
- * @returns {Number}
+ * @returns {number}
  */
 
 function getSeconds (value, unit, unitValues) {
@@ -128,10 +128,10 @@ function getSeconds (value, unit, unitValues) {
 /**
  * Convert a value from its existing unit to a new unit
  *
- * @param   {Number} value
- * @param   {String} unit
+ * @param   {number} value
+ * @param   {string} unit
  * @param   {Object} unitValues
- * @returns {Number}
+ * @returns {number}
  */
 
 function convert (value, unit, unitValues) {

package.json

@@ -30,11 +30,11 @@
   },
   "devDependencies": {
     "chai": "^4.2.0",
-    "coveralls": "^3.0.3",
+    "coveralls": "^3.0.6",
     "istanbul": "^0.4.5",
-    "mocha": "^6.1.4",
+    "mocha": "^6.2.0",
     "mocha-lcov-reporter": "1.3.0",
-    "standard": "^12.0.1",
+    "standard": "^13.1.0",
     "watch": "^1.0.2"
   }
 }

test.js

@@ -1,10 +1,8 @@
 /* globals describe, it */
 
-const chai = require('chai')
+const { expect } = require('chai')
 const timestring = require('./index')
 
-const expect = chai.expect
-
 describe('timestring', () => {
   it('can parse a timestring', () => {
     expect(timestring('500ms')).to.equal(0.5)
@@ -18,7 +16,7 @@ describe('timestring', () => {
   })
 
   it('can parse different unit identifiers', () => {
-    let unitMap = {
+    const unitMap = {
       ms: ['ms', 'milli', 'millisecond', 'milliseconds'],
       s: ['s', 'sec', 'secs', 'second', 'seconds'],
       m: ['m', 'min', 'mins', 'minute', 'minutes'],
@@ -69,7 +67,7 @@ describe('timestring', () => {
   })
 
   it('uses the passed options instead of the defaults', () => {
-    let opts = {
+    const opts = {
       hoursPerDay: 1,
       daysPerWeek: 2,
       weeksPerMonth: 3,