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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The string_decoder module from Node core

Get the native type of a value.

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

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

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

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.

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

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.

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

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

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

Parse String to Number based on configuration

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

ES5 spec-compliant shim for String.prototype.trim

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).

Measure the difference between two strings using the Levenshtein distance algorithm

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

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

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

Detect the indentation of code (commonjs fork)

Normalize a URL

Truncate a string to a specific width in the terminal

Strip redundant indentation and indent the string

Pad strings to a given length

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

Compile regular expressions' unicodeSets (v) flag.

Generate a cryptographically strong random string

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

Generate a unique random string

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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.

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

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

mdast utility to get the plain text content of a node

Parse regular expressions' unicodeSets (v) flag.

Functions for dealing with a PostgresSQL connection string

LZ-based compression algorithm

Fastest Levenshtein distance implementation in JS.

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

a few common utility template tags for ES2015

Wildcard matching tools

Compute ripemd160 of bytes or strings.

Convert object keys to camel case

Check if a character is decimal

Parse and stringify URL query strings

Check if a character is hexadecimal

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

Get the gzipped size of a string or buffer

Check if a character is alphanumerical

micromark utility to decode markdown strings

Check if a character is alphabetical

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

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

Math and string formula parser.

Convert a string to pascal case (upper camelcase).

Convert object keys from camel case

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

Create an array by repeating the given value n times.

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.

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.

Lazy brush - smooth drawing using mouse or finger

Get the system locale

Convert a string index to its line and column position

Simple micro templating

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.

Functional errors with formatted output

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

Convert a value to a ReadableStream

Various helper utilities

ES2017 spec-compliant String.prototype.padEnd shim.

Useful utilities for working with Uint8Array (and Buffer)

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

Terminal string styling with tagged template literals

Returns `true` if the value is a primitive.

Repeat a string - fast

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

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

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

Strip a substring from the start/end of a string

Simple wildcard matching

Remove the trailing spaces from a string.

Extract the first JSON object or array from a string

Check if a string is a URL

Check if a string or buffer ends with a given string

wraps words based on arbitrary 2D glyphs

Escape strings for use as JavaScript string literals

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

Remove leading indentation from ES6 template literals.

Stringify Object as tree structure

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

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.

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

Pluralize a word

The color gray, in ansi.

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

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

Returns true if a windows file path has invalid characters.

A simple string template function based on named or indexed arguments

Newline character converter

fast string hashing function

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.

String manipulation extensions for Underscore.js javascript library.

Native JS murmur hash implementation

Check if a character is a whitespace character

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

Elegant spinner for interactive CLI apps

Check if a string is SVG

Check if a character is a word character

Find multiple RegExp matches in a string

DOMParser.parseFromString for XML with IE8 fallback

Regular expression for matching HTML comments

Jest snapshot serializer that beautifies HTML.

Beautiful color gradients in terminal output

Opinionated HTML formatter focused towards making HTML diffs readable.

Reduce function calls in a string, using a callback

Fast and correct clip functions for HTML and plain text.

Terminal string styling done right

Pure-JS printf

Convert Unicode characters to Latin characters using transliteration

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

Slugify a string

Remove any existing casing from a string.

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

sprintf parser and basic formatter

Various helper utilities for working with buffers and binary data

Convert a character or character code to string

Check if a string is an IP address

ES2017 spec-compliant String.prototype.padStart shim.

The color cyan, in ansi.

ES2019 spec-compliant String.prototype.trimLeft shim.

Convert a string to space case.

nlcst utility to transform a tree to a string

The color red, in ansi.

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

Returns true if the value passed is all whitespace.

Extensible string utility for converting, identifying and flipping string case

remove diacritics from strings

String encoding utilitlies extracted from TweetNaCl.js

ES2019 spec-compliant String.prototype.trimLeft shim.

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.

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

Serialises error object to normal object

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

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Check if a string only contains alphanumeric characters

Write data to a random temporary file

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

Convert a string to camel case.

strings comparison matchers for chai

Check if a string is HTML

Terminal string styling done right

Zero-dependency unicode-aware string tools

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

Replace search occurrences with a replacement string.

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

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 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.

Test if a value is a regular expression string.

Insert supplied variable values into a format string.

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

Escape a regular expression string or pattern.

Convert between POSIX and Windows paths.

Iterator over lines in a string

Get the length of unicode strings

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

Parse parentheses from a string

Generate string from a token array by interpolating values.

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

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.

Escape a string for use in AppleScript

The fast way to check if a string is blank

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

Allocate a buffer containing a provided string.

slugifies even utf-8 chars!