more-js

More functions to work with.

Installation

npm install --save more-js

Usage

Currently there are two ways to use the functions:

1. As static functions (from v0.7)

Just require the respective type, and start using the static functions. For instance var Array = require('more-js/types/array'), would give you an Array namespace with all the functions. Then you can have expressions like firstVal = Array.first(arr).

• First argument for all static function must be of the respective type, i.e All functions under Array would expect an array object as the first argument.
• Currently, functions are available for Arrays, Objects & Strings. More types are in the pipeline.
• Please note that requiring any file under more-js/types would return a namespace (Object of functions), and they are not extended from any of the native data types.

Sample:

var Array = require('more-js/types/array');
var Object = require('more-js/types/object');
var String = require('more-js/types/string');

Array.unique([1, 2, 2, 3]); // [1,2,3]
Object.typeOf([1, 2]); // array
String.fmt("{} text", "Sample"); // Sample text
String.fmt("Name: {lastName} {firstName}", {firstName:"Narendra", lastName: "Modi"}); // Name: Modi Narendra

2. As member function (Would be deprecated in v1)

You can have all these static members added as part the respective JavaScript data types. Just require more-js somewhere in your project, require('more-js');. Once required, all the functions will be available under the respective data types as member function. i.e, you would be able to do the following.

Considering performance and safety, option #1 is a better approach. Hence #2 would be deprecated soon.

[1, 3, 3, 4].unique().first(); // 1
"{} text".fmt("Sample"); // Sample text

Functions

Array

• Array.first(array) - Returns the first element in the array
• Array.last(array) - Returns the last element in the array
• Array.validIndex(array, index) - Returns true if the index is in limit
• Array.normalizeIndex(array, index) - Mainly to convert a negative index to a valid index from the right. Returns normalized index if index is valid, else undefined
• Array.indexesOf(array, element) - Get indexes of all occurrences of an element
• Array.swap(array, indexA, indexB) - Swaps values at indexes A & B, returns true if successful
• Array.removeFrom(array, element, count) - Removes count number of value from the specified index. Count must be greater than 0 and defaults to 1. Returns the removed values.
• Array.remove(array, element, count) - Remove instances of a specific element from the array
• Array.insert(array, index, element1[...elementN]) - Inserts a set of elements at a position
• Array.append(array, array) - Append an array to the end of current array
• Array.filterPush(array, val1, [val2...valN]) - Pushes only non-null values into the array
• Array.unique(array) - Returns a new array of all unique elements
• Array.hashify(array, path) - Converts an array into a hash with value at the specified path as key
• Array.findBy(array, path, value) - Find first element from the array with matching value at the specified path. The function uses === for comparison
• Array.findAllBy(array, path, value) - Finds all element from the array with matching value at the specified path. Uses === for comparison

Object

• Object.typeOf(object) - Returns correct type of object as a string. Fixes type for array, null, date, new Boolean, new Number, new String, RegExp, NaN & Infinity.
• Object.isObject(object) - Returns true for non-null objects
• Object.isPlainObject(object) - Returns true for a plain objects (non-null, not array, not dom element, not window, not any other basic types)
• Object.isArray(object) - Returns true if object is an Array
• Object.isString(object) -Returns true if object is a String
• Object.isBoolean(object) - Returns true if object is a Boolean
• Object.isNumber(object) - Returns true if object is a Number
• Object.isFunction(object) - Returns true if object is a Function
• Object.val(path) - Gets the value at the specified key path. Keys in the path must be dot separated
• Object.keys() - Return all keys of current object
• Object.values() - Return an array of all values in the object
• Object.keyOf(value) - Given a value does a reverse look-up for a key
• Object.keysOf(value) - Given a value does a reverse look-up for all matching keys
• Object.forEach(callback) - Adds the missing forEach function to Objects
• Object.merge(object, appendArray) - Recursively merges the given object to the current object
• Object.equals(objectA, objectB) - Returns true if both objects have the same key-value pairs
• Object.inject(object, properties) - Injects a set of non-enumerable properties into an object

String

• String.format([val1, val2...Key Object]) - Replaces the patterns in current string with the given values. Pattern can be {} or {argumentIndex} or {keyName}. {} will be replaced in the order of given arguments. Optionally a hash of key value pairs can be passed as last argument.
• String.fmt([val1, val2...Key Object]) - Just an alias for format
• String.removeTags() - Removes HTML tags from current string

Running Tests

npm test

Release History

• 0.1.0 Initial release
• 0.2.0 Added string support
  • Added fmt(formatter) function to String.
  • Added filterPush function to Array.
  • Added val, values, keys & forEach functions to Object.
• 0.3.0 More object functions
  • Added isObject, isPlainObject, isArray, isString, isBoolean, isNumber, isFunction, & merge functions to Object.
• 0.4.0 More functions
  • Added array functions first, last, validIndex, normalizeIndex, indexesOf, swap, removeFrom, remove, insert, unique.
  • Added object functions typeOf, keyOf, keysOf.
  • Added string function format, both format and fmt are aliases.
• 0.5.0
  • Array - hashify, findBy, findAllBy
• 0.6.0
  • Object - equals, inject
  • String - removeTags
• 0.7.0
  • Major performance changes - All the functions were moved into custom namespaces
  • Backward compatibility is maintained
• 0.8.0
  • Added more.js, a namespace for all the types
  • Added browserify based build to convert more.js into a generic distributable form

Road-map

• 0.9.0
  • Add Function type