Introduction

ts-string-toolbox, is a lightweight JavaScript library for the browser or for Node.js that provides extra String methods.

Installation

1. If you want to use this library, you first need to install the [Node.js] (https://nodejs.org/en/).

2. When you install node.js, will also be installed [npm] (https://www.npmjs.com/).

3. Please run the following command.

npm i ts-string-toolbox

Methods

after

The after method returns everything after the given value in a string. The entire string will be returned if the value does not exist within the string:

after('This is my name', 'This is')
//  'my name'

afterLast

The afterLast method returns everything after the last occurrence of the given value in a string. The entire string will be returned if the value does not exist within the string:

afterLast('App\Controllers\AuthController', '\\')
//  'AuthController'

ascii

The ascii method will attempt to transliterate the string into an ASCII value:

ascii('û')
//  'u'

begin

The begin method adds a single instance of the given value to a string if it does not already start with that value:

begin('this/string', '/')
//  '/this/string'

begin('/this/string', '/')
//  '/this/string'

before

The before method returns everything before the given value in a string:

before('This is my name', 'my name')
//  'This is '

beforeLast

The beforeLast method returns everything before the last occurrence of the given value in a string:

beforeLast('This is my name', 'is')
//  'This '

between

The between method returns the portion of a string between two values:

between('This is my name', 'This', 'name')
//  ' is my '

betweenFirst

The betweenFirst method returns the smallest possible portion of a string between two values:

betweenFirst('[a] bc [d]', '[', ']')
//  'a'

camelCase

The camelCase method converts the given string to camel case:

camelCase('foo_bar')
//  'fooBar'

contains

The contains method determines if the given string contains the given value. This method is case sensitive:

contains('This is my name', 'my')
//  true

You may also pass an array of values to determine if the given string contains any of the values in the array:

contains('This is my name', ['my', 'foo'])

//  true

containsAll

The containsAll method determines if the given string contains all of the values in a given array:

containsAll('This is my name', ['my', 'name'])
//  true

endsWith

The endsWith method determines if the given string ends with the given value:

endsWith('This is my name', 'name')
//  true

You may also pass an array of values to determine if the given string ends with any of the values in the array

endsWith('This is my name', ['name', 'foo'])
//  true

endsWith('This is my name', ['this', 'foo'])
//  false

finish

The finish method adds a single instance of the given value to a string if it does not already end with that value:

finish('this/string', '/')
//  'this/string/'

finish('this/string/', '/')
//  'this/string/'

headline

The headline method will convert strings delimited by casing, hyphens, or underscores into a space delimited string with each word's first letter capitalized:

headline('steve_jobs')
//  'Steve Jobs'

headline('EmailNotificationSent')
//  'Email Notification Sent'

is

The is method determines if a given string matches a given pattern. Asterisks may be used as wildcard values:

is('foo*', 'foobar')
//  true

is('baz*', 'foobar')
//  false

isJson

The isJson method determines if the given string is valid JSON:

isJson('[1,2,3]')
//  true

isJson('{"first": "John", "last": "Doe"}')
//  true

isJson('{first: "John", last: "Doe"}')
//  false

isUrl

The isUrl method determines if the given string is a valid URL:

isUrl('http://example.com')
//  true

isUrl('nestjs')
//  false

isUlid

The isUlid method determines if the given string is a valid ULID:

isUlid('01gd6r360bp37zj17nxb55yv40')
//  true

isUlid('expressjs')
//  false

isUuid

The isUuid method determines if the given string is a valid UUID:

isUuid('a0a2a2d2-0b87-4a18-83f2-2529882be2de')
//  true

isUuid('reactjs')
//  false

kebabCase

The kebabCase method converts the given string to kebab case:

kebabCase('fooBar')
//  'foo-bar'

lcFirst

The lcFirst method returns the given string with the first character lowercased:

lcFirst('Foo Bar')
//  'foo Bar'

limit

The limit method truncates the given string to the specified length:

limit('The quick brown fox jumps over the lazy dog', 20)
//  'The quick brown fox...'

You may pass a third argument to the method to change the string that will be appended to the end of the truncated string:

limit('The quick brown fox jumps over the lazy dog', 20, ' (...)')
//  'The quick brown fox (...)'

lower

The lower method converts the given string to lowercase:

lower('NODEJS')
//  'nodejs'

mask

The mask method masks a portion of a string with a repeated character, and may be used to obfuscate segments of strings such as email addresses and phone numbers:

mask('[email protected]', '*', 3)
//  'fai***************'

If needed, you provide a number as the fourth argument to the mask method, which will mask at the given distance to the length provided:

mask('[email protected]', '*', 2, 10)
//  'fa**********le.com'

password

The password method may be used to generate a secure, random password of a given length. The password will consist of a combination of letters, numbers, symbols, and spaces. By default, passwords are 32 characters long:

password()
//  'ZaKo2vE-Bq:U,$%_nkrV4n,q~3qx/-_4'

password(12)
//  'xnu#ar>3V|i/N'

remove

The remove method removes the given value or array of values from the string:

const string = 'Peter Piper picked a peck of pickled peppers.'
remove('e', string)
//  'Ptr Pipr pickd a pck of pickld ppprs.'

You may also pass false as a third argument to the remove method to ignore case when removing strings:

remove('P', string, true)
//  'eter ier icked a eck of ickled eers.'

You may also pass array of string as first argument if you want to remove multiple values from string:

remove(['e', 'p'], string, true)
//  'tr ir ickd a ck of ickld rs.'

replaceStr

The replaceStr method replaces a given string within the string:

const string = 'React 16.x'
replaceStr('16.x', '18.x', string)
//  'React 18.x'

replaceStr("16.x", "18.x", "React 16.X", false)
//  'React 18.x'

replaceArray

The replaceArray method replaces a given value in the string sequentially using an array:

const string = 'The event will take place between ? and ?'
replaceArray('?', ['8:30', '9:00'], string)
//  'The event will take place between 8:30 and 9:00'

replaceArray

The replaceArray method replaces a given value in the string sequentially using an array:

const string = 'The event will take place between ? and ?'
replaceArray('?', ['8:30', '9:00'], string)
//  'The event will take place between 8:30 and 9:00'

replaceFirst

The replaceFirst method replaces the first occurrence of a given value in a string:

replaceFirst('the', 'a', 'the quick brown fox jumps over the lazy dog')
//  'a quick brown fox jumps over the lazy dog'

replaceLast

The replaceLast method replaces the last occurrence of a given value in a string:

replaceLast('the', 'a', 'the quick brown fox jumps over the lazy dog')
//  'the quick brown fox jumps over a lazy dog'

slugify

The slugify method generates a URL friendly "slug" from the given string:

slugify('This is my name', '-')
//  'This-is-my-name'

snakeCase

The snakeCase method converts the given string to snake case:

snakeCase('fooBar')
//  'foo_bar'

snakeCase('fooBar', '-')
//  'foo-bar'

squish

The squish method removes all extraneous white space from a string, including extraneous white space between words:

squish('    my    name    ')
//  'my name'

startsWith

The startsWith method determines if the given string begins with the given value:

startsWith('This is my name', 'This')
//  true

If an array of possible values is passed, the startsWith method will return true if the string begins with any of the given values:

startsWith('This is my name', ['This', 'That', 'There'])
//  true

studly

The studly method converts the given string to studly case:

studly('foo_bar')
//  'FooBar'

swap

The swap method replaces multiple values in the given string function:

swap([
    'Tacos' => 'Burritos',
    'great' => 'fantastic',
], 'Tacos are great!')
//  'Burritos are fantastic!'

title

The title method converts the given string to title case:

title('a nice title uses the correct case')
//  'A Nice Title Uses The Correct Case'

ucFirst

The ucFirst method returns the given string with the first character capitalized:

ucFirst('foo bar')
//  'Foo bar'

upper

The upper method converts the given string to uppercase:

upper('me')
//  'ME'

wordCount

The wordCount method returns the number of words that a string contains:

wordCount('Hello, world!')
//  2