JSPM

Left and right string padding with advanced features.

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Check if a string has ANSI escape codes

Slice a string with ANSI escape codes

Similar to String#trim() but removes only newlines

Terminal string styling done right (+ CommonJS build)

Detect the indentation of code

Terminal string styling done right

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

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

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ANSI escape codes for styling strings in the terminal

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Regular expression for matching ANSI escape codes

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

Escape RegExp special characters

Wordwrap a string with ANSI escape codes

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Get the native type of a value.

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

The string_decoder module from Node core

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

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Parse JSON with more helpful errors

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

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

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

Modify strings, generate sourcemaps

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

ANSI escape codes for manipulating the terminal

Returns true if a string has an extglob.

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

Strip the final newline character from a string or Uint8Array

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

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

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.

Indent each line in a string

Format spaces from the left and right end of a string and between strings

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

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

Parse String to Number based on configuration

Measure the difference between two strings using the Levenshtein distance algorithm

ES5 spec-compliant shim for String.prototype.trim

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

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

Querystringify - Small, simple but powerful query string parser.

Combine left, right and center pad modules in lack of a working alternative

Strip leading whitespace from each line in a string

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

Truncate a string to a specific width in the terminal

Normalize a URL

Compile regular expressions' unicodeSets (v) flag.

Strip redundant indentation and indent the string

Detect the indentation of code (commonjs fork)

Pad strings to a given length

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

Generate a cryptographically strong random string

Generate a unique random string

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

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

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

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

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

Parse regular expressions' unicodeSets (v) flag.

LZ-based compression algorithm

Fastest Levenshtein distance implementation in JS.

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

mdast utility to get the plain text content of a node

Functions for dealing with a PostgresSQL connection string

Wildcard matching tools

a few common utility template tags for ES2015

Convert object keys to camel case

Check if a character is decimal

Parse and stringify URL query strings

Check if a character is hexadecimal

Compute ripemd160 of bytes or strings.

Get the gzipped size of a string or buffer

Terminal string styling done right. This package is both cjs/esm compatible!

Check if a character is alphabetical

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.

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

Convert a string to pascal case (upper camelcase).

Convert object keys from camel case

Create an array by repeating the given value n times.

micromark utility to decode markdown strings

Formatting Date objects as strings since 2013

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

Pads a string on the left and right sides to center a source string.

Split a string on the first occurance of a given separator

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

Get the system locale

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

Isomorphic, functional type-checking for Javascript

Lazy brush - smooth drawing using mouse or finger

Convert a string index to its line and column position

Simple micro templating

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

Convert a string to a valid safe filename

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

Remove wrapping quotes from a string.

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

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.

Returns `true` if the value is a primitive.

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

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

Strip a substring from the start/end of a string

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

Remove the trailing spaces from a string.

Simple wildcard matching

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

Extract the first JSON object or array from a string

Check if a string or buffer ends with a given string

Stringify Object as tree structure

wraps words based on arbitrary 2D glyphs

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

Check if a string is a URL

Escape strings for use as JavaScript string literals

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

The color gray, in ansi.

Pluralize a word

Remove leading indentation from ES6 template literals.

Serializes any DOM node into a String

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

Returns true if a windows file path has invalid characters.

fast string hashing function

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

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

Newline character converter

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

A simple string template function based on named or indexed arguments

String manipulation extensions for Underscore.js javascript library.

Check if a character is a whitespace character

Elegant spinner for interactive CLI apps

Native JS murmur hash implementation

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.

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

Regular expression for matching HTML comments

Find multiple RegExp matches in a string

Reduce function calls in a string, using a callback

Beautiful color gradients in terminal output

Opinionated HTML formatter focused towards making HTML diffs readable.

DOMParser.parseFromString for XML with IE8 fallback

Jest snapshot serializer that beautifies HTML.

Pure-JS printf

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

Fast and correct clip functions for HTML and plain text.

Terminal string styling done right

Remove any existing casing from a string.

Convert Unicode characters to Latin characters using transliteration

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

sprintf parser and basic formatter

Slugify a string

ES2017 spec-compliant String.prototype.padStart shim.

ES2019 spec-compliant String.prototype.trimLeft shim.

Check if a string is an IP address

The color cyan, in ansi.

Convert a character or character code to string

ES2019 spec-compliant String.prototype.trimLeft shim.

The color red, in ansi.

remove diacritics from strings

Extensible string utility for converting, identifying and flipping string case

Returns true if the value passed is all whitespace.

Various helper utilities for working with buffers and binary data

Convert a string to space case.

nlcst utility to transform a tree to a string

String encoding utilitlies extracted from TweetNaCl.js

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

sprintf formatting targetted for CLI

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

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

Math and string formula parser.

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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.

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

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

Write data to a random temporary file

Convert a string to camel case.

Zero-dependency unicode-aware string tools

strings comparison matchers for chai

Terminal string styling done right

Terminal string styling done right

Replace search occurrences with a replacement string.

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

Check if a string is HTML

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

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

Test if a value is a regular expression string.

Convert between POSIX and Windows paths.

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

Test if a value is a string.

Insert supplied variable values into a format string.

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

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

Escape a regular expression string or pattern.

Iterator over lines in a string

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

Get the length of unicode strings

Create a regular expression from a regular expression string.

Escape a string for use in AppleScript

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

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

Parse parentheses from a string

The fast way to check if a string is blank

Generate string from a token array by interpolating values.

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

Regular expression for matching URLs

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

slugifies even utf-8 chars!

Tagged template literal for Sanity.io GROQ-queries

Allocate a buffer containing a provided string.

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

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

Return a regular expression to parse a regular expression string.

Strip ANSI color codes from a string. No dependencies.

Convert a string to lowercase.

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

Convert a string into a stream (streams2)

parse a css color string

Strip ANSI escape codes

A fully Unicode-aware string reverser written in JavaScript.

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

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.

small function to append a query string to a URL

Replaces strings in a stream.

A collection of personal utilities to live a happier life

Converts a Buffer/String into a readable stream

tiny http client for Node and the browser

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