prefix - npm Package Compare versions

Comparing version 0.2.4 to 0.2.5

index.js

@@ -1,5 +0,67 @@
-function identity(x) { return x; }
+var style = document.createElement('p').style
+var prefixes = ['O', 'ms', 'Moz', 'Webkit']
+var upper = /([A-Z])/g
+var memo = {}
 
-module.exports = identity;
-module.exports.dash = identity;
-module.exports.dash = identity;
+/**
+ * prefix `key`
+ *
+ *   prefix('transform') // => WebkitTransform
+ *
+ * @param {String} key
+ * @return {String}
+ * @api public
+ */
+function prefix(key){
+  // Camel case
+  key = key.replace(/-([a-z])/g, function(_, char){
+    return char.toUpperCase()
+  })
+
+  // Without prefix
+  if (style[key] !== undefined) return key
+
+  // With prefix
+  var Key = key.charAt(0).toUpperCase() + key.slice(1)
+  var i = prefixes.length
+  while (i--) {
+    var name = prefixes[i] + Key
+    if (style[name] !== undefined) return name
+  }
+
+  throw new Error('Unable to prefix ' + key)
+}
+
+/**
+ * Memoized version of `prefix`
+ *
+ * @param {String} key
+ * @return {String}
+ * @api public
+ */
+function prefixMemozied(key){
+  return key in memo
+    ? memo[key]
+    : memo[key] = prefix(key)
+}
+
+/**
+ * Create a dashed prefix
+ *
+ * @param {String} key
+ * @return {String}
+ * @api public
+ */
+function prefixDashed(key){
+  key = prefix(key)
+  if (upper.test(key)) {
+    key = '-' + key.replace(upper, '-$1')
+    upper.lastIndex = 0
+  }
+  return key.toLowerCase()
+}
+
+if (typeof module !== 'undefined' && module.exports){
+  module.exports = prefixMemozied
+  module.exports.dash = prefixDashed
+}

package.json

 {
   "name": "prefix",
-  "version": "0.2.4",
-  "description": "prefix a css attribute",
+  "version": "0.2.5",
+  "description": "Prefix CSS attributes",
   "dependencies": {},
   "devDependencies": {
-    "mocha": "^2.2.5",
-    "serve": "jkroso/serve#1.5.1"
+    "mocha": "^2.4.5",
+    "serve": "jkroso/serve#1.6.7"
   },
   "repository": "git://github.com/jkroso/prefix.git",
   "main": "index.js",
-  "browser": "browser.js",
-  "keywords": ["prefix"],
+  "keywords": [
+    "prefix"
+  ],
   "author": "Jake Rosoman",
-  "license": "MIT",
-  "files": ["index.js"]
+  "license": "MIT"
 }

Fixed alerts

Trivial Package

Supply chain risk

Packages less than 10 lines of code are easily copied into your own project and may not warrant the additional supply chain risk of an external dependency.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

5924

162.12%

Number of package files

9

125%

Lines of code

120

2900%

Number of medium supply chain risk alerts

0

-100%

No dependency changes