JSPM

ANSI escape codes for styling strings in the terminal

Strip ANSI escape codes from a string

Regular expression for matching ANSI escape codes

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

Terminal string styling done right

Wordwrap a string with ANSI escape codes

Escape RegExp special characters

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

The string_decoder module from Node core

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

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

Get the native type of a value.

Modify strings, generate sourcemaps

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

Parse JSON with more helpful errors

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

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

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

Returns true if a string has an extglob.

ANSI escape codes for manipulating the terminal

Strip the final newline character from a string or Uint8Array

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

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

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.

Indent each line in a string

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

Slice a string with ANSI escape codes

Parse String to Number based on configuration

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

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

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

Measure the difference between two strings using the Levenshtein distance algorithm

Strip leading whitespace from each line in a string

ES5 spec-compliant shim for String.prototype.trim

Truncate a string to a specific width in the terminal

Strip redundant indentation and indent the string

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

Querystringify - Small, simple but powerful query string parser.

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

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

Determine the East Asian Width of a Unicode character

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).

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

Get the shortest leading whitespace from lines in a string

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

Compile regular expressions' unicodeSets (v) flag.

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

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

Normalize a URL

Check if a character is decimal

Generate a unique random string

LZ-based compression algorithm

mdast utility to get the plain text content of a node

Functions for dealing with a PostgresSQL connection string

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

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

Generate a cryptographically strong random string

Check if a character is hexadecimal

Detect the indentation of code

Check if a character is alphabetical

Parse regular expressions' unicodeSets (v) flag.

Check if a character is alphanumerical

micromark utility to decode markdown strings

Fastest Levenshtein distance implementation in JS.

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

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

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

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

Wildcard matching tools

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

a few common utility template tags for ES2015

Convert object keys to camel case

Parse and stringify URL query strings

Check if a string has ANSI escape codes

Get the gzipped size of a string or buffer

Useful utilities for working with Uint8Array (and Buffer)

Terminal string styling with tagged template literals

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

Split a string on the first occurance of a given separator

Math and string formula parser.

Compute ripemd160 of bytes or strings.

Various helper utilities

Convert object keys from camel case

Convert a string to pascal case (upper camelcase).

Isomorphic, functional type-checking for Javascript

Create an array by repeating the given value n times.

Various helper utilities for working with buffers and binary data

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

Formatting Date objects as strings since 2013

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

Convert a string index to its line and column position

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

Get the system locale

Functional errors with formatted output

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

Stringify Object as tree structure

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

Simple micro templating

Convert a string to a valid safe filename

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

Remove wrapping quotes from a string.

Remove the trailing spaces from a string.

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

Simple wildcard matching

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

Repeat a string - fast

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

Math and string formula parser.

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

ES2017 spec-compliant String.prototype.padEnd shim.

Returns `true` if the value is a primitive.

Convert a value to a ReadableStream

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

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

Remove leading indentation from ES6 template literals.

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

Strip a substring from the start/end of a string

fast string hashing function

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

Native JS murmur hash implementation

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

A simple string template function based on named or indexed arguments

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

Check if a string is a URL

Escape strings for use as JavaScript string literals

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

A fast function for calculating where a string should be truncated, given an optional width limit and an ellipsis string.

Serializes any DOM node into a String

String manipulation extensions for Underscore.js javascript library.

Returns true if a windows file path has invalid characters.

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.

Pluralize a word

The color gray, in ansi.

A fast function for calculating the visual width of a string once printed to the terminal.

DOMParser.parseFromString for XML with IE8 fallback

Slugify a string

Convert Unicode characters to Latin characters using transliteration

Beautiful color gradients in terminal output

Elegant spinner for interactive CLI apps

Reduce function calls in a string, using a callback

Find multiple RegExp matches in a string

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

Opinionated HTML formatter focused towards making HTML diffs readable.

nlcst utility to transform a tree to a string

Check if a string is SVG

remove diacritics from strings

Jest snapshot serializer that beautifies HTML.

Newline character converter

Check if a character is a whitespace character

Pure-JS printf

Check if a string is an IP address

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

Check if a character is a word character

Regular expression for matching HTML comments

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

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

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

Remove any existing casing from a string.

Extensible string utility for converting, identifying and flipping string case

Encode & decode strings, bytes, and integers to Base62

The color cyan, in ansi.

sprintf parser and basic formatter

String encoding utilitlies extracted from TweetNaCl.js

ES2017 spec-compliant String.prototype.padStart shim.

Returns true if the value passed is all whitespace.

parses number and unit, '20px' into [20, 'px']

The color red, in ansi.

Convert a string to space case.

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

Split string by any separator excluding brackets, quotes and escaped characters

The fast way to check if a string is blank

Parse parentheses from a string

ES2019 spec-compliant String.prototype.trimLeft shim.

ES2019 spec-compliant String.prototype.trimLeft shim.

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

Replaces strings in a stream.

Tagged template literal for Sanity.io GROQ-queries

Base64 and base64url to string or arraybuffer, and back. Node, Deno or browser.

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

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

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

sprintf formatting targetted for CLI

Zero-dependency unicode-aware string tools

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Write data to a random temporary file

parse a css color string

Check if a string only contains alphanumeric characters

escape Markdown control characters

Serialises error object to normal object

slugifies even utf-8 chars!

Convert HTML/XML source code or DOM nodes to React elements

Convert a string to camel case.

Similar to String#trim() but removes only newlines

Convert between POSIX and Windows paths.

Replace search occurrences with a replacement string.

Check if a string is HTML

Get a pretty output of the original, minified, gzipped size of a string or buffer: 130 B → 91 B → 53 B (gzip)

Returns true if the given number is odd, and is an integer that does not exceed the JavaScript MAXIMUM_SAFE_INTEGER.

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

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

Test if a value is a string.

Escape a regular expression string or pattern.

Insert supplied variable values into a format string.

Test if a value is a regular expression string.

Generate string from a token array by interpolating values.

Create a regular expression from a regular expression string.

Escape RegExp special characters

Convert a string into a stream (streams2)

Convert a camelized/dasherized/underscored string into a humanized one: `fooBar-Baz_Faz` → `Foo bar baz faz`

Embed data in other data and easily extract it when needed

Pad strings to a given length

Escape a string for use in AppleScript

A robust & character encoding–agnostic JavaScript implementation of the `Quoted-Printable` content transfer encoding as defined by RFC 2045.

Iterator over lines in a string

Regular expression for matching URLs

Return a regular expression to parse a regular expression string.

Allocate a buffer containing a provided string.

small function to append a query string to a URL

The JavaScript implementation of the Multiaddr spec

Strip ANSI color codes from a string. No dependencies.

Convert a string to lowercase.

Detect the indentation of code (commonjs fork)

Get the length of unicode strings

Simple implmentation of Stream.Readable and Stream.Writable holding the data in memory.

Contains some util methods for converting numbers into words, ordinal words and ordinal numbers.

Consume a stream of data into a binary Buffer as efficiently as possible

Left and right string padding

tiny http client for Node and the browser

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

alters a string by replacing multiple range fragments in one fast pass

strings comparison matchers for chai

String#replace for React components

Get a property from an object using dot (object path) notation.

Convert a string to snake case.

parse string escapes (\n, \r, etc.)

Converts a Buffer/String into a readable stream

Write nice template literals with newlines, but format as a single-line string

Split a piece text into multiple chunks based on a search query, allowing you to highlight the matches.

A collection of personal utilities to live a happier life

maximally minimal string formatting library

Return true if the given number is even.

Unicode-aware JS string splitting, typescript version

Turn a HTML string into DOM elements, cross-platform

A set of JavaScript helper functions to check for types

A fully Unicode-aware string reverser written in JavaScript.

More than 130 Handlebars helpers in ~20 categories. Helpers can be used with Assemble, Generate, Verb, Ghost, gulp-handlebars, grunt-handlebars, consolidate, or any node.js/Handlebars project.

FNV-1a non-cryptographic hash function

Replace all substring matches in a string

Easily remove Unicode combining marks from strings.

Strip HTML tags from strings. No parser, accepts mixed sources.