Use prettier and eslint

index.js

@@ -2,11 +2,11 @@
  * Helpers.
  */
 
-var s = 1000
-var m = s * 60
-var h = m * 60
-var d = h * 24
-var y = d * 365.25
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var y = d * 365.25;
 
 /**
  * Parse or format the given `val`.
@@ -22,18 +22,19 @@ var y = d * 365.25
  * @api public
  */
 
-module.exports = function (val, options) {
-  options = options || {}
-  var type = typeof val
+module.exports = function(val, options) {
+  options = options || {};
+  var type = typeof val;
   if (type === 'string' && val.length > 0) {
-    return parse(val)
+    return parse(val);
   } else if (type === 'number' && isNaN(val) === false) {
-    return options.long ?
-			fmtLong(val) :
-			fmtShort(val)
+    return options.long ? fmtLong(val) : fmtShort(val);
   }
-  throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val))
-}
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
 
 /**
  * Parse the given `str` and return milliseconds.
@@ -44,53 +45,55 @@ module.exports = function (val, options) {
  */
 
 function parse(str) {
-  str = String(str)
+  str = String(str);
   if (str.length > 10000) {
-    return
+    return;
   }
-  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str)
+  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
+    str
+  );
   if (!match) {
-    return
+    return;
   }
-  var n = parseFloat(match[1])
-  var type = (match[2] || 'ms').toLowerCase()
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
   switch (type) {
     case 'years':
     case 'year':
     case 'yrs':
     case 'yr':
     case 'y':
-      return n * y
+      return n * y;
     case 'days':
     case 'day':
     case 'd':
-      return n * d
+      return n * d;
     case 'hours':
     case 'hour':
     case 'hrs':
     case 'hr':
     case 'h':
-      return n * h
+      return n * h;
     case 'minutes':
     case 'minute':
     case 'mins':
     case 'min':
     case 'm':
-      return n * m
+      return n * m;
     case 'seconds':
     case 'second':
     case 'secs':
     case 'sec':
     case 's':
-      return n * s
+      return n * s;
     case 'milliseconds':
     case 'millisecond':
     case 'msecs':
     case 'msec':
     case 'ms':
-      return n
+      return n;
     default:
-      return undefined
+      return undefined;
   }
 }
 
@@ -104,18 +107,18 @@ function parse(str) {
 
 function fmtShort(ms) {
   if (ms >= d) {
-    return Math.round(ms / d) + 'd'
+    return Math.round(ms / d) + 'd';
   }
   if (ms >= h) {
-    return Math.round(ms / h) + 'h'
+    return Math.round(ms / h) + 'h';
   }
   if (ms >= m) {
-    return Math.round(ms / m) + 'm'
+    return Math.round(ms / m) + 'm';
   }
   if (ms >= s) {
-    return Math.round(ms / s) + 's'
+    return Math.round(ms / s) + 's';
   }
-  return ms + 'ms'
+  return ms + 'ms';
 }
 
 /**
@@ -131,7 +134,7 @@ function fmtLong(ms) {
     plural(ms, h, 'hour') ||
     plural(ms, m, 'minute') ||
     plural(ms, s, 'second') ||
-    ms + ' ms'
+    ms + ' ms';
 }
 
 /**
@@ -140,10 +143,10 @@ function fmtLong(ms) {
 
 function plural(ms, n, name) {
   if (ms < n) {
-    return
+    return;
   }
   if (ms < n * 1.5) {
-    return Math.floor(ms / n) + ' ' + name
+    return Math.floor(ms / n) + ' ' + name;
   }
-  return Math.ceil(ms / n) + ' ' + name + 's'
+  return Math.ceil(ms / n) + ' ' + name + 's';
 }

package.json

@@ -8,18 +8,37 @@
     "index.js"
   ],
   "scripts": {
+    "precommit": "lint-staged",
+    "lint": "eslint lib/* bin/*",
     "test": "mocha test/index.js",
     "test-browser": "serve ./test"
   },
-  "license": "MIT",
-  "devDependencies": {
-    "expect.js": "0.3.1",
-    "mocha": "3.0.2",
-    "serve": "5.0.4",
+  "eslintConfig": {
+    "extends": "eslint:recommended",
+    "env": {
+      "node": true,
+      "es6": true
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "npm run lint",
+      "prettier --single-quote --write",
+      "git add"
+    ]
   },
   "component": {
     "scripts": {
       "ms/index.js": "index.js"
     }
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "eslint": "3.18.0",
+    "expect.js": "0.3.1",
+    "husky": "0.13.2",
+    "lint-staged": "3.4.0",
+    "mocha": "3.0.2",
+    "serve": "5.0.4"
   }
 }