esbuild is faster but the built programs on average are slower

Check, does a plain object (AST/JSON) has any unique keys, not present in a reference object (another AST/JSON)

Validate and normalise user choice: array, object or both?

Checks if index is within any of the given string index ranges

Extract values and paths from AST by keys OR set them by keys

Delete all plain objects in AST if they contain a certain key/value pair

Sort string index ranges

Lay one string on top of another, with an optional offset

Split string into array by chunks of whitespace

Convert between native JS string character indexes and grapheme-count-based indexes

Like t.same assert on array of objects, where element order doesn't matter

Edit package.json without parsing, as string, to keep the formatting intact

Your next best friend when editing complex nested code

Recursively walk the input and set all found values in plain objects to something

Utility library to traverse AST

Does a given character belong to XML spec's "Production 4 OR 4a" type (is acceptable for XML element's name)

Utility library of AST helper functions

Replace strings with optional lookarounds, but without regexes

Expands string index ranges within whitespace boundaries until letters are met

Compare anything: AST, objects, arrays and strings

Merge and flatten any arrays found in all values within plain objects

Does the AST/nested-plain-object/array/whatever contain only one kind of value?

Increment or decrement each index in every range

Splits the CSV string into array of arrays, each representing a row of columns

Like indexOf but returns array and counts per-grapheme

Answers, is the string input string more an HTML or XHTML (or neither)

Is given character suitable to be in an HTML attribute's name?

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

Replace all n/m dashes, curly quotes with their simpler equivalents

Generate BitBucket readme header anchor slug URLs. Unofficial, covers whole ASCII and a bit beyond

List of all named HTML entities

Put non-empty strings into arrays, turn empty-ones into empty arrays. Bypass everything else

Convert shorthand hex color codes into full

Flatten complex nested objects according to a reference objects

Like _.includes but with wildcards

Sorts double-entry bookkeeping CSV coming from internet banking

Consumes a defaults object with booleans, generates all possible variations of it

Regular expression for detecting JSP (Java Server Pages) code

Tells, is given character a part of astral character, specifically, a high and low surrogate

Is the input (plain object, array, string or whatever) not empty?

All HTML attributes known to the Humanity

All HTML entities which are not email template friendly

Delete keys from all arrays or plain objects, nested within anything, by key or by value or by both, and clean up afterwards. Accepts wildcards

Find out, is nested array/object/string/AST tree is empty

Regular expression for matching HTML empty conditional comments

Regular expression for detecting Python-specific Jinja code

Like _.pullAll but with globs (wildcards)

Does an HTML tag start at given position?

Regular expression for detecting Jinja or Nunjucks code

Detects various templating languages present in string

Does AST contain only empty space?

Is given string a language code (as per IANA)

Compare anything: AST, objects, arrays, strings and nested thereof

Add missing keys into plain objects, according to a reference object

Traverse and edit AST

Getter/setter for nested parsed HTML AST's, querying objects by key/value pairs

Is given string a valid media descriptor (including media query)?

Test helper to generate function opts object variations

Is given string a relative URI?

The inner core of json-comb

Convert string index to line-column position

Removes frivolous entries from commitizen generated changelogs

Validate options object

Take an array of string index ranges, delete/replace the string according to them

Recursive HTML entity decoding for Ranges workflow

Recursively, deeply merge of anything (objects, arrays, strings or nested thereof), which weighs contents by type hierarchy to ensure the maximum content is retained

Like String.trim() but you can choose granularly what to trim

Integrate regex operations into Ranges workflow

Resolves custom-marked, cross-referenced paths in parsed JSON

Shorten sets of strings deterministically, to be git-friendly

Extracts, cleans and encodes text

Utility library to traverse AST, reports upcoming values

Turns an array of arrays of data into a nested tree of plain objects

Generate Atomic CSS

Helps to prevent widow words in a text

Parses raw Tap: string-to-object or stream-to-a-promise-of-an-object

Groups array of strings by omitting number characters

Scans all characters within a string and checks are they within ASCII range

Iterate string considering ranges, as if they were already applied

Merge and sort string index ranges

Finds where are arbitrary templating marker heads and tails located

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

Adds missing alt attributes to img tags. Non-parsing

Detects and removes thousand separators (dot/comma/quote/space) from string-type digits

Visual helper to place templating code around table tags into correct places

Invert string index ranges

Extracts chunks from possibly comma or whatever-separated string

Detect and (recursively) remove head and tail wrappings around the input string

Extracts or deletes HTML, CSS, text and/or templating tags from string

Replace chunks of whitespace with a single spaces

Crop array of ranges when they go beyond the reference string's length

HTML and CSS lexer aimed at code with fatal errors, accepts mixed coding languages

Is a character on a given index a closing of an HTML attribute?

Parser aiming at broken or mixed code, especially HTML & CSS

Finds and fixes common and not so common broken named HTML entities, returns ranges array of fixes

Parse SASS variables file into a plain object of CSS key-value pairs

Collapse the leading and trailing whitespace of a string

Extracts CSS class/id names from a string

Sort array of arrays by column, rippling the sorting outwards from that column

Gather string index ranges

Update all row numbers in all console.logs in JS code

Comprehensive, HTML-entities-aware tool to typographically-correct the apostrophes and single/double quotes

Iterate a string and any changes within given string index ranges

Search for a malformed string. Think of Levenshtein distance but in search

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