warmsea

WarmseaJS

Features

WarmseaJS is yet another JavaScript utility library.

WarmseaJS v1.0.0 is designed to be a drop-in replacement of underscore.js with var _ = warmsea; executed. It is fully compatible with underscore.js v1.7.0 with two exceptions, .VERSION and .noConflict(). Both functions works for warmsea but underscore.

It provides more feature besides underscore functions, such as:

1. Type casting and testing
2. String formatting
3. Debugger
4. Collections
5. And more...

Get Started

Node.js

Install WarmseaJS with NPM:

npm install warmsea

Then, you can use all the APIs from WarmseaJS. For example:

var w = require('warmsea');

var name = 'warmsea';
var msg = w.format('Hello, %s!', name);
console.log(msg);  // `Hello, warmsea!` will be printed.

Browser

Download WarmseaJS:

• The compressed, production WarmseaJS, as a single JS file
• The uncompressed, development WarmseaJS, as a single JS file

Include the JS file with <script> tag or RequireJS. When included with <script> tag, a global namespace warmsea will be introduced. Personally, I use _ or w as a shortcut of warmsea. You can use anything else you like, or just use warmsea. In this README file, w is used as the shortcut of warmsea.

<script src="path/to/warmsea.min.js"></script>
<script>
  var _ = warmsea;
  ...
</script>

require(['warmsea'], function(_) {
  ...
});

You may need to configure RequireJS before you can require WarmseaJS with it.

Then, you can use all the APIs from WarmseaJS. For example:

var name = 'warmsea';
var msg = w.format('Hello, %s!', name);
console.log(msg);  // `Hello, warmsea!` will be printed.

Features not in underscore

Core Module

w.error()

Throws an Error with a specified message.

w.error();
// throw new Error();

w.error('invalid');
// throw new Error('invalid');

w.error('[%s] invalid', (new Date()).toISOString());
// throw new Error('[2014-10-09T11:27:19.158Z] invalid');
// w.error() is powered by w.format(), so format feature is provided.

w.unimplemented()

Throws an Error says "Unimplemented".

Arrays Module

w.inArray()

w.inArray() is powered by _.indexOf().

w.inArray([1, 2, 3], 2);  // Returns true
w.inArray([1, 2, 3], 4);  // Returns false

w.sort()

w.sort(list, cmp, context) is a in-place sort function. It returns list after it is sorted.

w.sort([-3, -1, 2, 4], function(a, b) {
  return w.cmp(a * a, b * b);
});
// Returns [-1, 2, -3, 4]

w.sorted()

Almost the same as w.sorted() except it doesn't change the original array, but returns a sorted shallow copied one.

Collections Module

Collections module provides two classes: w.Stack and w.Queue.

• Collections
  • w.Queue - (Queue, the class)
    • w.Queue.prototype.allowEmptyDequeue
    • w.Queue.prototype.length
    • w.Queue.prototype.clear()
    • w.Queue.prototype.count()
    • w.Queue.prototype.enqueue()
    • w.Queue.prototype.dequeue()
    • w.Queue.prototype.peek()
  • w.Stack - (Stack, the class)
    • w.Stack.prototype.allowEmptyPop
    • w.Stack.prototype.length
    • w.Stack.prototype.clear()
    • w.Stack.prototype.count()
    • w.Stack.prototype.push()
    • w.Stack.prototype.pop()
    • w.Stack.prototype.peek()

Debug Modele

// Create a debugger with the specified name.
var dbg = w.debug('business:account');

// All debuggers are disabled by default.

// Enable a debugger.
w.debug.enable('business:account');

// Enable all debuggers start with "business:".
w.debug.enable('business:*');

// Disable a debugger.
w.debug.disable('business:someName');

// Call a debugger. If it is enabled, it will print the debug message.
// If not, nothing happens.
dbg('Debug Message');

// Debuggers can be enabled or disabled before OR after their creations.
w.debug.enable('*');          // Enable all debuggers.
var dbg1 = w.debug('hello');  // It is enabled.

// Check if a name is enabled.
w.debug.enabled('someName');

Math Module

w.cmp()

w.cmp = function(a, b) {
  return a > b ? 1 : a < b ? -1 : 0;
};

Objects Module

w.hideProperties()

Make some properties not enumerable. Only works in ES5.

var obj = {
  a: 1,
  b: 2
};

w.keys(obj);  // Returns ["a", "b"]

w.hideProperties(obj, ['a']);

w.keys(obj);  // Returns ["b"]

w.memoizedProperty()

w.memoizedProperty(obj, name, getter, enumerable=true) adds a memoized property to an object.

In ES5, the property is initialized with getter during the first access, and then the value is remembered. But in ES4, the property is initialized immediately.

var obj = {};
w.memoizedProperty(obj, '_date', function() {
  return new Date();
}, false);

Random Module

Random module contains 3 functions: w.randomInt(), w.randomFloat, and randomString().

Function	Description
w.randomInt(stop)	Returns an integer in [0, stop)
w.randomInt(start, stop)	Returns an integer in [start, stop)
w.randomFloat(stop)	Returns a number in [0, stop)
w.randomFloat(start, stop)	Returns a number in [start, stop)
w.randomString(length, allowedChars)	Returns a random string

Strings Module

w.pad()

// pad
w.pad('hello', 8, '#'); // '###hello'
w.pad(7, 3, 0);         // '007'
w.pad('x', 5, 'abc');   // 'abcax'

w.format()

// format
w.format('Hello, %s!', 'warmsea');     // 'Hello, warmsea!'
w.format('%04d%02d%02d', 2004, 4, 1);  // '20040401'
w.format('%x', 255);                   // 'ff'
w.format('%#X', 255);                  // '0XFF'
w.format('%+8.2f', 123.456);           // ' +123.46'

w.format('%(year)04d-%(month)02d-%(day)02d',
         {year: 2004, month: 4, day: 1});        // '2014-04-01'
w.format('To %(action)s, or not to %(action)s.',
         {action: 'do'});                        // 'To do, or not to do.'

// Multi-line format
var template = function() {
    /*!<<<EOD
     Hello,
       %s!
     EOD*/
};
w.format(template, 'warmsea');  // 'Hello,
                                // '  warmsea!

w.format(function() {
    /*<<<EOD;WS-KEEP
     Hello,
       space!
     EOD*/
});                             // '     Hello,
                                // '       space!

Types Module

// type casting
w.bool(1);         // true
w.i('35');         // 35
w.i('0xff');       // 255
w.f('1.35e3');     // 1350
w.str(1.35e3);     // '1350'
w.array();         // []
w.array('hello');  // ['hello']

// type testing
w.isNumber(0xff);             // true
w.isNumber('0xff');           // false
w.isInt(1);                   // true
w.isString('0xff');           // true
w.isArray([]);                // true
w.isFunction(w.isFunction);   // true
w.isPlainObject({'a': '1'});  // true
w.isPlainObject(new Date());  // false
w.isObject(new Date());       // true
w.isObject([]);               // true

A full list of APIs not in underscore

Here, I use w as the shortcut of warmsea.

• Core
  • w._ = w.underscore
  • w.VERSION
  • w.global
  • w.noConflict()
  • w.unimplement()
  • w.error()
• Arrays
  • w.inArray()
  • w.sort()
  • w.sorted()
• Collections
  • w.Queue - (Queue, the class)
    • w.Queue.prototype.allowEmptyDequeue
    • w.Queue.prototype.length
    • w.Queue.prototype.clear()
    • w.Queue.prototype.count()
    • w.Queue.prototype.enqueue()
    • w.Queue.prototype.dequeue()
    • w.Queue.prototype.peek()
  • w.Stack - (Stack, the class)
    • w.Stack.prototype.allowEmptyPop
    • w.Stack.prototype.length
    • w.Stack.prototype.clear()
    • w.Stack.prototype.count()
    • w.Stack.prototype.push()
    • w.Stack.prototype.pop()
    • w.Stack.prototype.peek()
• Debug
  • w.debug()
  • w.debug.disable()
  • w.debug.enable()
  • w.debug.enabled()
• Math
  • w.cmp()
• Objects
  • w.hideProperties()
  • w.memoizedProperty()
• Random
  • w.randomFloat()
  • w.randomInt()
  • w.randomString()
• Strings
  • w.pad()
  • w.format()
• Types
  • w.array()
  • w.bool()
  • w.f()
  • w.i()
  • w.isInt()
  • w.isPlainObject()
  • w.str()