helpers.js

A collection of small JavaScript helper functions for various use cases. All of these little snippets solve problems that are very common, but don't have a widespread decent implementation. Most functions are available as easy-to-use prototypes on their respective objects.

Number

Number.round

Rounds a number to a given precision and omits trailing 0 values.

100.51235.round(3)

100.512

String

String.base

Gets only the base of a given URL.

'https://www.twitter.com/RadLikeWhoa_'.base()

'twitter.com'

String.format

Format a string using placeholders like {0}.

'{0}, hello {1} world!'.format('Oh', 'beautiful')

'Oh, hello beautiful world!'

String.insert

Insert a string into another one at a given numerical index or a keyword.

'I am here.'.insert('in between ', 5)

'I am in between here.'

String.truncate

Truncates the string to the given length and replaces superfluous characters with the given substitute.

'This is a longer text'.truncate(15)

'This is a long…'

String.words

Count the words inside a given element. The output can be formatted using the {{count}} placeholder.

'Hello, world!'.words()

2

Functions

readingtime

Returns the estimated time to complete reading of a text in a human readable format.

readingtime(2720, 'Reading this takes {time}.', 270)

'Reading this takes about 10 minutes.'