JSPM

Terminal string styling done right

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

Looks up the first non-whitespace character to the left/right of a given index

Left and right string padding

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

Terminal string styling done right

Terminal string styling done right

Right pad a string.

Node.js module for reshaping Right-To-Left (Arabic/Persian) charators in string

This method removes whitespace from the left and right end of a string.

Right pad a string.

Compare primitives the right way (using `<`, `>` and `==`)

String right pad

Terminal and Console string styling done right.

Right pad a string.

This method removes whitespace from the end of a string.

Terminal string styling done right

add characters to the right of a string such that its total length is n

Pads characters on right sides of a source string.

Strip ANSI escape codes from a string

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)

Terminal string styling done right

Detect the indentation of code

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

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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The string_decoder module from Node core

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Get the native type of a value.

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

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

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

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

Modify strings, generate sourcemaps

ANSI escape codes for manipulating the terminal

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

Returns true if a string has an extglob.

Strip the final newline character from a string or Uint8Array

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

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.

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

Indent each line in a string

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

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

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

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

Strip leading whitespace from each line in a string

ES5 spec-compliant shim for String.prototype.trim

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

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

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.

Measure the difference between two strings using the Levenshtein distance algorithm

Querystringify - Small, simple but powerful query string parser.

Pad strings to a given length

Normalize a URL

Detect the indentation of code (commonjs fork)

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

Truncate a string to a specific width in the terminal

Compile regular expressions' unicodeSets (v) flag.

Strip redundant indentation and indent the string

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

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Generate a cryptographically strong random string

Generate a unique random string

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.

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

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

Parse regular expressions' unicodeSets (v) flag.

LZ-based compression algorithm

Determine the East Asian Width of a Unicode character

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

Functions for dealing with a PostgresSQL connection string

mdast utility to get the plain text content of a node

Fastest Levenshtein distance implementation in JS.

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

Wildcard matching tools

a few common utility template tags for ES2015

Convert object keys to camel case

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

Compute ripemd160 of bytes or strings.

Check if a character is alphabetical

Check if a character is decimal

Parse and stringify URL query strings

Check if a character is hexadecimal

Get the gzipped size of a string or buffer

Check if a character is alphanumerical

micromark utility to decode markdown strings

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

Math and string formula parser.

Create an array by repeating the given value n times.

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 object keys from camel case

Convert a string to pascal case (upper camelcase).

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

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

Formatting Date objects as strings since 2013

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

Lazy brush - smooth drawing using mouse or finger

Isomorphic, functional type-checking for Javascript

Split a string on the first occurance of a given separator

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

Get the system locale

Convert a string index to its line and column position

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

Various helper utilities

Convert a string to a valid safe filename

Simple micro templating

Remove wrapping quotes from a string.

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

Repeat a string - fast

Functional errors with formatted output

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

Convert a value to a ReadableStream

ES2017 spec-compliant String.prototype.padEnd shim.

Useful utilities for working with Uint8Array (and Buffer)

Terminal string styling with tagged template literals

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

Strip a substring from the start/end of a string

Returns `true` if the value is a primitive.

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

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

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

Extract the first JSON object or array from a string

Simple wildcard matching

wraps words based on arbitrary 2D glyphs

Check if a string or buffer ends with a given string

Remove the trailing spaces from a string.

Check if a string is a URL

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

Escape strings for use as JavaScript string literals

Remove leading indentation from ES6 template literals.

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

Stringify Object as tree structure

fast string hashing function

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

Serializes any DOM node into a String

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

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

Pluralize a word

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

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

The color gray, in ansi.

String manipulation extensions for Underscore.js javascript library.

Returns true if a windows file path has invalid characters.

Newline character converter

A simple string template function based on named or indexed arguments

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.

Elegant spinner for interactive CLI apps

Native JS murmur hash implementation

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

Check if a character is a whitespace character

Check if a character is a word character

Fast and correct clip functions for HTML and plain text.

Check if a string is SVG

DOMParser.parseFromString for XML with IE8 fallback

Beautiful color gradients in terminal output

Find multiple RegExp matches in a string

Regular expression for matching HTML comments

Terminal string styling done right

Jest snapshot serializer that beautifies HTML.

Reduce function calls in a string, using a callback

Opinionated HTML formatter focused towards making HTML diffs readable.

Check if a string is an IP address

Various helper utilities for working with buffers and binary data

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

Convert Unicode characters to Latin characters using transliteration

Slugify a string

Pure-JS printf

ES2017 spec-compliant String.prototype.padStart shim.

Convert a character or character code to string

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

Remove any existing casing from a string.

sprintf parser and basic formatter

The color cyan, in ansi.

nlcst utility to transform a tree to a string

Convert a string to space case.

The color red, in ansi.

Returns true if the value passed is all whitespace.

ES2019 spec-compliant String.prototype.trimLeft shim.

Extensible string utility for converting, identifying and flipping string case

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

remove diacritics from strings

ES2019 spec-compliant String.prototype.trimLeft shim.

String encoding utilitlies extracted from TweetNaCl.js

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

Math and string formula parser.

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

sprintf formatting targetted for CLI

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

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Serialises error object to normal object

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

Check if a string only contains alphanumeric characters

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

Terminal string styling done right

Write data to a random temporary file

Convert a string to camel case.

Terminal string styling done right

strings comparison matchers for chai

Zero-dependency unicode-aware string tools

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)

Replace search occurrences with a replacement string.

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

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

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

The fast way to check if a string is blank

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

Iterator over lines in a string

Escape a regular expression string or pattern.

Test if a value is a string.

Test if a value is a regular expression string.

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

Insert supplied variable values into a format string.

Convert between POSIX and Windows paths.

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

Generate string from a token array by interpolating values.

Parse parentheses from a string

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

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

Strip ANSI escape codes

Get the length of unicode strings

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

Escape a string for use in AppleScript

Create a regular expression from a regular expression string.

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

slugifies even utf-8 chars!