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)

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

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

Parse JSON with more helpful errors

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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

ANSI escape codes for manipulating the terminal

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.

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.

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.

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

Indent each line in a string

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

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

Measure the difference between two strings using the Levenshtein distance algorithm

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

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.

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).

Truncate a string to a specific width in the terminal

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

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

Detect the indentation of code (commonjs fork)

Generate a unique random string

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

Pad strings to a given length

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.

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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.

Fastest Levenshtein distance implementation in JS.

mdast utility to get the plain text content of a node

Wildcard matching tools

Parse regular expressions' unicodeSets (v) flag.

Functions for dealing with a PostgresSQL connection string

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

Check if a character is hexadecimal

Compute ripemd160 of bytes or strings.

Get the gzipped size of a string or buffer

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

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

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

micromark utility to decode markdown strings

Create an array by repeating the given value n times.

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

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.

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

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

Lazy brush - smooth drawing using mouse or finger

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

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.

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

Remove the trailing spaces from a string.

Strip a substring from the start/end of a string

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

Simple wildcard matching

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

Extract the first JSON object or array from a string

Stringify Object as tree structure

Check if a string or buffer ends with a given string

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

wraps words based on arbitrary 2D glyphs

The color gray, in ansi.

Escape strings for use as JavaScript string literals

Check if a string is a URL

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

Serializes any DOM node into a String

Returns true if a windows file path has invalid characters.

Pluralize a word

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

Newline character converter

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.

Elegant spinner for interactive CLI apps

Native JS murmur hash implementation

Check if a string is SVG

Regular expression for matching HTML comments

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

Find multiple RegExp matches in a string

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.

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

Remove any existing casing from a string.

sprintf parser and basic formatter

ES2019 spec-compliant String.prototype.trimLeft shim.

Convert Unicode characters to Latin characters using transliteration

Slugify a string

Fast and correct clip functions for HTML and plain text.

Terminal string styling done right

The color cyan, in ansi.

ES2017 spec-compliant String.prototype.padStart shim.

Check if a string is an IP address

ES2019 spec-compliant String.prototype.trimLeft shim.

Convert a character or character code to string

remove diacritics from strings

The color red, in ansi.

Extensible string utility for converting, identifying and flipping string case

Returns true if the value passed is all whitespace.

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

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. `&gt;` converts to `>`.

Math and string formula parser.

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

Check if a string only contains alphanumeric characters

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Serialises error object to normal object

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

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

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

Write data to a random temporary file

Convert a string to camel case.

Zero-dependency unicode-aware string tools

strings comparison matchers for chai

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

Terminal string styling done right

Check if a string is HTML

Replace search occurrences with a replacement string.

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

Terminal string styling done right

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.

Get the length of unicode strings

Insert supplied variable values into a format string.

Escape a regular expression string or pattern.

Iterator over lines in a string

Escape a string for use in AppleScript

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

Create a regular expression from a regular expression string.

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

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

Parse parentheses from a string

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

Regular expression for matching URLs

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

Generate string from a token array by interpolating values.

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

The fast way to check if a string is blank

Tagged template literal for Sanity.io GROQ-queries

slugifies even utf-8 chars!