wodge

a wodge of functional dough

  • wodge

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wodge
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browser support
wodge
A collection of useful functions.

Example

var w = require("wodge");

API

  • wodge
symbol extend(object) clone(input) omit(object, toOmit) escapeRegExp() pluck(arrayOfObjects, the) isNumber() isPlainObject(input) arrayify(input) every(object, iterator) each(object, callback) bytesToSize(bytes, precision) getHomeDir() fill(fillWith, len) padRight(input, width, padWith) exists(array, value) queryFoundInObject() where() findWhere() without(input, toRemove) first(objectArray, prop, val) commonDir(files) union() commonSequence(a, b) escapeForJSON(input)

w.symbol

some cross platform symbols (tick and cross)

w.extend(object)

Merge a list of objects, left to right, into one.
  • object Object a sequence of Object instances to be extended

Example

> w.extend({}, { one: 1, three: 3 }, { one: "one", two: 2 }, { four: 4 });
{ one: 'one',
  three: 3,
  two: 2,
  four: 4 }

w.clone(input)

Clones an object or array
  • input Object | Array the input to clone

Returns: Object | Array

Example

> date = new Date()
Fri May 09 2014 13:54:34 GMT+0200 (CEST)
> w.clone(date)
{}  // a Date instance doensn't own any properties
> date.clive = "hater"
'hater'
> w.clone(date)
{ clive: 'hater' }
> array = [1,2,3]
[ 1, 2, 3 ]
> newArray = w.clone(array)
[ 1, 2, 3 ]
> array === newArray
false

w.omit(object, toOmit)

Returns a clone of the input object, minus the specified properties
  • object Object the object to clone
    toOmit string[] an array of property names to omit from the clone

Returns: Object

Example

> w.omit({ one: 1, two: 2, three: 3, four: 4 }, [ "two", "four" ]);
{ one: 1, three: 3 }

w.escapeRegExp()

escape special regular expression characters

Example

> w.escapeRegExp("(.*)");
'\\(\\.\\*\\)'

w.pluck(arrayOfObjects, the)

Plucks the value of the specified property from each object in the input array
  • arrayOfObjects Object[] the input array of objects
    the string property to pluck

Returns: Array

Example

> var data = [
...     {one: 1, two: 2},
...     {two: "two"},
...     {one: "one", two: "zwei"},
... ];

> w.pluck(data, "one");
[ 1, 'one' ]
> w.pluck(data, "two");
[ 2, 'two', 'zwei' ]
> w.pluck(data, "one", "two");
[ 1, 'two', 'one' ]

w.isNumber()

Returns true if input is a number

Example

> w.isNumber(0)
true
> w.isNumber(1)
true
> w.isNumber(1.1)
true
> w.isNumber(0xff)
true
> w.isNumber(0644)
true
> w.isNumber(6.2e5)
true
> w.isNumber(a)
false
> w.isNumber(NaN)
false
> w.isNumber(Infinity)
false

w.isPlainObject(input)

Returns true if input type is object and not an Array
  • input * the input to test

Returns: boolean

Example

> w.isPlainObject(new Date())
true
> w.isPlainObject({ clive: "hater" })
true
> w.isPlainObject([ 0, 1 ])
false

w.arrayify(input)

Takes input and guarantees an array back. Result can be one of three things:
  • puts a single scalar in an array
  • converts array-like object (e.g. arguments) to a real array
  • converts null or undefined to an empty array

  • input * the input value to convert to an array

Returns: Array

Example

> w.arrayify(null)
[]
> w.arrayify(0)
[ 0 ]
> w.arrayify([ 1, 2 ])
[ 1, 2 ]
> function f(){ return w.arrayify(arguments); }

> f(1,2,3)
[ 1, 2, 3 ]

w.every(object, iterator)

Returns true if the supplied iterator function returns true for every property in the object
  • object Object the object to inspect
    iterator function the iterator function to run against each key/value pair, the args are (value, key).

Returns: Boolean

Example

> function aboveTen(input){ return input > 10; }

> w.every({ eggs: 12, carrots: 30, peas: 100 }, aboveTen)
true
> w.every({ eggs: 6, carrots: 30, peas: 100 }, aboveTen)
false

w.each(object, callback)

Runs the iterator function against every key/value pair in the input object
  • object Object the object to iterate
    callback function the iterator function to run against each key/value pair, the args are (value, key).

Example

> var total = 0;

> function addToTotal(n){ total += n; }

> w.each({ eggs: 3, celery: 2, carrots: 1 }, addToTotal)

> total
6

w.bytesToSize(bytes, precision)

Convert bytes to human-readable size
  • bytes number the bytes value to convert
    precision number number of decimal places

Returns: string

Example

> w.bytesToSize(10000)
'10 KB'
> w.bytesToSize(10000, 1)
'9.8 KB'
> w.bytesToSize(10000, 2)
'9.77 KB'
> w.bytesToSize(10000, 3)
'9.766 KB'

w.getHomeDir()

Cross-platform home directory retriever

Example

> w.getHomeDir()
'/Users/Lloyd'

w.fill(fillWith, len)

Create a new string filled with the supplied character
  • fillWith string the fill character
    len number the length of the output string

Returns: string

Example

> w.fill("a", 10)
'aaaaaaaaaa'
> w.fill("ab", 10)
'aaaaaaaaaa'

w.padRight(input, width, padWith)

Add padding to the right of a string
  • input string the string to pad
    width number the desired final width
    padWith string the padding character

Returns: string

Example

> w.padRight("clive", 1)
'clive'
> w.padRight("clive", 1, "-")
'clive'
> w.padRight("clive", 10, "-")
'clive-----'

w.exists(array, value)

returns true if a value, or nested object value exists in an array
  • array Array the array to search
    value * the value to search for

Returns: boolean

Example

> w.exists([ 1, 2, 3 ], 2)
true
> w.exists([ { result: false }, { result: false } ], { result: true })
false
> w.exists([ { result: true }, { result: false } ], { result: true })
true
> w.exists([ { result: true }, { result: true } ], { result: true })
true

w.queryFoundInObject()

docs todo

w.where()

docs todo

w.findWhere()

docs todo

w.without(input, toRemove)

If the input is an array, returns the input minus the specified values. If the input is an object, it returns a clone of the object minus the specified properties.
  • input Array | Object the input array or object
    toRemove * a single, or array of values to omit

Returns: Array | Object

Example

> w.without([ 1, 2, 3 ], 2)
[ 1, 3 ]
> w.without([ 1, 2, 3 ], [ 2, 3 ])
[ 1 ]

w.first(objectArray, prop, val)

Returns the first object in the input array with property set to value.
  • objectArray Object[] input array of objects
    prop string property to inspect
    val * desired value

Returns: Object | undefined

Example

> w.first([{ product: "egg", stock: true }, { product: "chicken", stock: true }], "stock", true)
{ product: 'egg', stock: true }
> w.first([{ product: "egg", stock: true }, { product: "chicken", stock: true }], "stock", false)

w.commonDir(files)

commonDir returns the directory common to each path in the list
  • files Array An array of file paths to inspect

Returns: string - - A single path ending with the path separator, e.g. "/user/some/folder/"

Example

> files = fs.readdirSync(".").map(function(file){ return path.resolve(file); })
[ '/Users/Lloyd/Documents/75lb/wodge/.DS_Store',
  '/Users/Lloyd/Documents/75lb/wodge/.git',
  '/Users/Lloyd/Documents/75lb/wodge/.gitignore',
  '/Users/Lloyd/Documents/75lb/wodge/.jshintrc',
  '/Users/Lloyd/Documents/75lb/wodge/README.md',
  '/Users/Lloyd/Documents/75lb/wodge/lib',
  '/Users/Lloyd/Documents/75lb/wodge/node_modules',
  '/Users/Lloyd/Documents/75lb/wodge/package.json',
  '/Users/Lloyd/Documents/75lb/wodge/test' ]
> w.commonDir(files)
'/Users/Lloyd/Documents/75lb/wodge/'

w.union()

merge two arrays into a single array of unique values

Example

> var array1 = [ 1, 2 ], array2 = [ 2, 3 ];

> w.union(array1, array2)
[ 1, 2, 3 ]
> var array1 = [ { id: 1 }, { id: 2 } ], array2 = [ { id: 2 }, { id: 3 } ];

> w.union(array1, array2)
[ { id: 1 }, { id: 2 }, { id: 3 } ]
> var array2 = [ { id: 2, blah: true }, { id: 3 } ]

> w.union(array1, array2)
[ { id: 1 },
  { id: 2 },
  { id: 2, blah: true },
  { id: 3 } ]
> w.union(array1, array2, "id")
[ { id: 1 }, { id: 2 }, { id: 3 } ]

w.commonSequence(a, b)

Returns the initial elements which both input arrays have in common
  • a Array first array to compare
    b Array second array to compare

Returns: Array

Example

> w.commonSequence([1,2,3], [1,2,4])
[ 1, 2 ]

w.escapeForJSON(input)

strips special characters, making suitable for storage in a JS/JSON string
  • input string the input

Returns: string

Example

> w.escapeForJSON("hello\nthere")
'hello\\nthere'