JSPM

Match the case of `value` to that of `base`

Match substrings on the left or right of a given index, ignoring whitespace

JavaScript replaceLast function - Replaces last match for pattern in string with replacement

Get all the matches for a regular expression in a string.

A regex to match astral symbols that supports unicode strings.

match-string is a javascript function who return a regexp for match a string with all of his accents possible

Replace strings in webpack modules, with configurable apply-stage and match-count requirements.

replace strings that match a particular pattern with a React Component, recursively

Generate a random string match a given regular expression, suitable for mocking strings.

Get the line number for each regex match found in a string.

Regular expression for matching ANSI escape codes

Advanced RegExp assertions for Chai.js

match the string

Validates given IPs (IPv4 and IPv6) using [micromatch][] - glob patterns, RegExp, string or array of globs. If match returns the IP, otherwise null.

A collection of string matching algorithms built with React Select in mind

Convert strings to match a pattern

Matches strings against configurable strings, globs, regular expressions, and/or functions

Find multiple RegExp matches in a string

a search util that gives match strength of a query against a sentence

`String.prototype.matchAll` ponyfill.

A React component for finding matches within a split string.

easier than regex string matching patterns for urls and other strings. turn strings into data or data into strings.

Match Emoji combinations according to unicode emoji specification

ANSI escape codes for styling strings in the terminal

The string_decoder module from Node core

Replace all substring matches in a string

Replace search occurrences with a replacement string.

Detect the indentation of code

String#replace for React components

Split a string on the first occurance of a given separator

Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet

Returns true if a string has an extglob.

Fuzzy filtering and string similarity scoring - compatible with fuzzaldrin

Measure the difference between two strings using the Levenshtein distance algorithm

Pluralize a word

Asynchronous String.prototype.replace()

A function to extract any colors from a string

Yet another javascript fuzzy matching library

String Tokenization Library for JavaScript

Fastest Levenshtein distance implementation in JS.

Check if a string has ANSI escape codes

Newline character converter

Replace search occurrences with a replacement string.

Calculates similarity between two strings

Regular expression for matching email addresses

Strip ANSI escape codes from a string

The most efficient JS implementation calculating the Levenshtein distance, i.e. the difference between two strings.

Terminal string styling done right

Get the visual width of a string - the number of columns required to display it

Escape RegExp special characters

Simple wildcard matching

Test if a value is a string.

Convert between POSIX and Windows paths.

Insert supplied variable values into a format string.

Test if a value is a regular expression string.

Escape a regular expression string or pattern.

Generate string from a token array by interpolating values.

Simple string matching / globbing / RegEx matching

Wordwrap a string with ANSI escape codes

Human-friendly replacements.

Create a regular expression from a regular expression string.

Tokenize a string into an array of string parts and format identifier objects.

Return a regular expression to parse a regular expression string.

Get the native type of a value.

Matching IPs using [micromatch][] and [ip-filter][] - glob patterns, RegExp, string or array of globs. Returns matcher function.

Convert a string to lowercase.

Allocate a buffer containing a provided string.

Returns true if a windows file path has invalid characters.

Check if the character represented by a given Unicode code point is fullwidth

Strip UTF-8 byte order mark (BOM) from a string

Parse JSON with more helpful errors

Replace text patterns with applause.

Convert a dash/dot/underscore/space separated string to camelCase or PascalCase: `foo-bar` → `fooBar`

Get a stream as a string, Buffer, ArrayBuffer or array

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

Regular expression for matching HTML comments

Modify strings, generate sourcemaps

Detect the indentation of code (commonjs fork)

ANSI escape codes for manipulating the terminal

Tagged template string regular expression compiler.

Returns true if a file path does not contain any invalid characters.

Replaces strings in a stream.

Compare strings containing a mix of letters and numbers in the way a human being would in sort order.

Strip the final newline character from a string or Uint8Array

ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

Slice a string with ANSI escape codes

prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.

Efficient implementation of Levenshtein algorithm with locale-specific collator support.

Check if a string is an IP address

Get all URLs in a string

Indent each line in a string

Convert a camelized string into a lowercased one with a custom separator: unicornRainbow → unicorn_rainbow

Returns true if the value passed is all whitespace.

Returns `true` if an array has a glob pattern.

Customisable string match sorting features

Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

ES5 spec-compliant shim for String.prototype.trim

Parse String to Number based on configuration

Regular expression for matching JavaScript comments

A robust HTML entities encoder/decoder with full Unicode support.

Get the real length of a string - by correctly counting astral symbols and ignoring ansi escape codes

Querystringify - Small, simple but powerful query string parser.

Easily add ANSI colors to your text and symbols in the terminal. A faster drop-in replacement for chalk, kleur and turbocolor (without the dependencies and rendering bugs).

[](https://www.npmjs.com/package/levenary) [](https://github.com/tanhauhau/levenary/actions)

Truncate a string to a specific width in the terminal

Strip leading whitespace from each line in a string

A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.

Normalize a URL

Compile regular expressions' unicodeSets (v) flag.

Strip redundant indentation and indent the string

Generate a unique random string

Small footprint URL parser that works seamlessly across Node.js and browser environments

A robust & optimized `String.prototype.repeat` polyfill, based on the ECMAScript 6 specification.

Generate a cryptographically strong random string

Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

Get the shortest leading whitespace from lines in a string

Robustly get an object's own property keys (strings and symbols), including non-enumerables when possible

Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.

A robust polyfill for the `CSS.escape` utility method as defined in CSSOM.

Trim newlines from the start and/or end of a string

Repeat the given string n times. Fastest implementation for repeating a string.

Get the visual width of the widest line in a string - the number of columns required to display it

Determine the East Asian Width of a Unicode character

A robust & optimized `String.prototype.includes` polyfill, based on the ECMAScript 6 specification.

mdast utility to get the plain text content of a node

Wildcard matching tools

Parse regular expressions' unicodeSets (v) flag.

Replace text patterns with applause.

Functions for dealing with a PostgresSQL connection string

The string_decoder module from Node core

LZ-based compression algorithm

Check if a character is decimal

a few common utility template tags for ES2015

Convert object keys to camel case

Parse and stringify URL query strings

a library that provides a simple and efficient way to match string against glob patterns.

Check if a character is hexadecimal

Compute ripemd160 of bytes or strings.

Get the gzipped size of a string or buffer

Unpacks the content found within a text, delimited by an opening char and a closing char, e.g., 'Can extract (only the content found here within these parentheses)'

Check if a character is alphanumerical

CommonJS version - The smallest and fastest command-line coloring package on the internet

Math and string formula parser.

Easy way to split a string on a given character unless it's quoted or escaped.

Check if a character is alphabetical

Convert milliseconds to a human readable string: `1337000000` → `15d 11h 23m 20s`

Convert a string to pascal case (upper camelcase).

Strip ANSI color codes from a string. No dependencies.

Convert object keys from camel case

Replace text patterns with applause.

micromark utility to decode markdown strings

Create an array by repeating the given value n times.

Convert a string to lowercase.

Formatting Date objects as strings since 2013

A module that parses a string as regular expression and returns the parsed value.

Get the system locale

StringScanner performs lexical scanning operations on a string.

Compare strings containing a mix of letters and numbers in the way a human being would in sort order.

Hashing made simple. Get the hash of a buffer/string/stream/file.

Isomorphic, functional type-checking for Javascript

Convert a string index to its line and column position

Human-friendly replacements.

Mapping between standard locale identifiers and Windows locale identifiers (LCID)

Simple micro templating

Convert a string to a valid safe filename

Remove wrapping quotes from a string.

Compare alphanumeric strings the same way a human would, using a natural order algorithm

a library for matching human-quality input to a list of potential matches using the Levenshtein distance algorithm

Various helper utilities

Repeat a string - fast

Useful utilities for working with Uint8Array (and Buffer)

Functional errors with formatted output

Convert a value to a ReadableStream

ES2017 spec-compliant String.prototype.padEnd shim.

Functions that surround a string with ansicolor codes so it prints in color.

Returns `true` if the value is a primitive.

Trim a consecutively repeated substring: foo--bar---baz → foo-bar-baz

Terminal string styling with tagged template literals

The smallest and fastest command-line coloring package on the internet

Return the first index at which a given element can be found.

Remove the trailing spaces from a string.

Convert a string/promise/array/iterable/asynciterable/buffer/typedarray/arraybuffer/object into a stream

Strip a substring from the start/end of a string

A high performance library to match discontinuous strings

Capitalize every word in a string: `unicorn cake` → `Unicorn Cake`

Check if a string is an IP address

Stringify Object as tree structure

hast utility to get the plain-text value of a node

The color gray, in ansi.

Escape strings for use as JavaScript string literals

Check if a string is a URL

String manipulation functions.

Iterate any iterable JS value. Works robustly in all environments, all versions.

Serializes any DOM node into a String

Lightweight and performant natural sorting of arrays and collections by differentiating between unicode characters, numbers, dates, etc.

Remove leading indentation from ES6 template literals.

Strip a byte order mark (BOM) from a string.

fast string hashing function

A simple string template function based on named or indexed arguments

Get the line and column number of a specific character in a string

Stringify is to `eval` as `JSON.stringify` is to `JSON.parse`

String manipulation extensions for Underscore.js javascript library.

Check if a character is a whitespace character

Parse JavaScript one character at a time to look for snippets in Templates. This is not a validator, it's just designed to allow you to have sections of JavaScript delimited by brackets robustly.

Native JS murmur hash implementation

Elegant spinner for interactive CLI apps

Check if a string is SVG

Check if a character is a word character

hast utility to get the plain-text value of a node according to the `innerText` algorithm

Reduce function calls in a string, using a callback

Handlebars + Helpers = Fumanchu

Beautiful color gradients in terminal output

Opinionated HTML formatter focused towards making HTML diffs readable.

DOMParser.parseFromString for XML with IE8 fallback

A robust & optimized `String.fromCodePoint` polyfill, based on the ECMAScript 6 specification.

Pure-JS printf

Jest snapshot serializer that beautifies HTML.

Remove any existing casing from a string.

Right pad a string with zeros or a specified string. Fastest implementation.

sprintf parser and basic formatter

ES2019 spec-compliant String.prototype.trimLeft shim.

Convert Unicode characters to Latin characters using transliteration

This package includes the [core-js](https://github.com/zloirock/core-js) polyfill for `String#replaceAll`, along with TypeScript typings.

Slugify a string

The color cyan, in ansi.

ES2017 spec-compliant String.prototype.padStart shim.

ES2019 spec-compliant String.prototype.trimLeft shim.

remove diacritics from strings

The color red, in ansi.

Extensible string utility for converting, identifying and flipping string case

Ukkonens approximate string matching algorithm for finding edit distance similar to Levenshtein

The most efficient JS implementation calculating the Levenshtein distance, i.e. the difference between two strings.

String encoding utilitlies extracted from TweetNaCl.js

Convert a string to space case.

nlcst utility to transform a tree to a string

Various helper utilities for working with buffers and binary data

sprintf formatting targetted for CLI

Convert HTML entities to HTML characters, e.g. `>` converts to `>`.

Math and string formula parser.

String formatting inspired by Python's str.format()

Check if a string only contains alphanumeric characters

Serialises error object to normal object

A robust & optimized `String.prototype.codePointAt` polyfill, based on the ECMAScript 6 specification.

Find lexicographical points between strings

Run replace on a string and update it asynchronous

Convert efficiently index to/from line-column in a string

Similar to String#trim() but removes only newlines

Lightweight format utility for the browser, based on util.format().

Build and evaluate JavaScript strings safely via tagged template literals

Write data to a random temporary file