prototypes - npm Package Compare versions

Comparing version 0.1.6 to 0.1.7

index.js

@@ -11,3 +11,3 @@ 'use strict';
 require('./lib/string.js');
-require('./lib/math.js');
+var mathLib = require('./lib/math.js');
 var objectLib = require('./lib/object.js');
@@ -17,2 +17,4 @@
 exports.overwriteWith(objectLib);
+exports.overwriteWith(mathLib);
 
+

lib/math.js

@@ -55,2 +55,28 @@ 'use strict';
 /**
+ * Find out if the argument is a number.
+ * http://stackoverflow.com/a/1830844/978796
+ */
+exports.isNumber = function(value)
+{
+	return !isNaN(parseFloat(value)) && isFinite(value);
+};
+
+/**
+ * Test the function isNumber().
+ */
+function testIsNumber(callback)
+{
+	testing.assert(exports.isNumber(5), '5 should be number', callback);
+	testing.assert(exports.isNumber(0), '0 should be number', callback);
+	testing.assert(exports.isNumber(-1), '-1 should be number', callback);
+	testing.assert(exports.isNumber(1.1), '1.1 should be number', callback);
+	testing.assert(exports.isNumber(8e5), '8e5 should be number', callback);
+	testing.assert(!exports.isNumber(NaN), 'NaN should not be number', callback);
+	testing.assert(!exports.isNumber('a'), 'a should not be number', callback);
+	testing.assert(!exports.isNumber(' '), 'space should not be number', callback);
+	testing.assert(!exports.isNumber('\t\t'), 'tabs should not be number', callback);
+	testing.success(callback);
+}
+
+/**
  * Compute the logarithm in base 10.
@@ -98,7 +124,8 @@ */
 {
-	testing.run({
-		parseInt: testParseInt,
-		log10: testLog10,
-		toRad: testToRad,
-	}, callback);
+	testing.run([
+		testParseInt,
+		testIsNumber,
+		testLog10,
+		testToRad,
+	], callback);
 };
@@ -105,0 +132,0 @@

package.json

 {
 	"name": "prototypes",
-	"version": "0.1.6",
+	"version": "0.1.7",
 	"description": "Some common prototypes for node.js: string.startsWith(), object.countProperties() and more. Functions are added using Object.defineProperty() to avoid polluting new objects.",
@@ -5,0 +5,0 @@ "homepage": "https://github.com/alexfernandez/prototypes",

README.md

@@ -165,4 +165,4 @@ [![Build Status](https://secure.travis-ci.org/alexfernandez/prototypes.png)](http://travis-ci.org/alexfernandez/prototypes)
 
-There are math functions in `Math`, in `Number.prototype` and even as globals,
-e.g. `parseInt()`.
+There are math functions in `Math`, in `Number.prototype`, exported `isNumber`
+and even as globals, e.g. `parseInt()`.
 
@@ -188,2 +188,15 @@ ### parseInt(string)
 
+### isNumber(value)
+
+The function isNumber() is based on
+[this StackOverflow answer](http://stackoverflow.com/a/1830844/978796):
+it checks if the parameter is a number.
+Examples:
+
+    var prototypes = require('prototypes');
+    prototypes.isNumber(5);
+      \=> true
+    prototypes.isNumber('hi');
+      \=> false
+
 ### Math.log10(number)
@@ -190,0 +203,0 @@

No alert changes

Improved metrics

Total package byte prevSize

23571

increased by6.08%

Lines of code

614

increased by4.42%

Number of lines in readme file

235

increased by5.86%

No dependency changes