pseudomap
A thing that is a lot like ES6 `Map`, but without iterators, for use in environments where `for..of` syntax and `Map` are not available.
A thing that is a lot like ES6 `Map`, but without iterators, for use in environments where `for..of` syntax and `Map` are not available.
Promisify a callback-style function
Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.
Detect whether a terminal supports color

the mighty option parser used by yargs
Generates and consumes source maps
Lightweight debugging utility for Node.js and the browser
Transforms css values and at-rule params into the tree
The semantic version parser used by npm.
Strip ANSI escape codes from a string
Find a file or directory by walking up parent directories
The string_decoder module from Node core
Escape RegExp special characters
Parse JSON with more helpful errors
Check if the character represented by a given Unicode code point is fullwidth
A robust Punycode converter that fully complies to RFC 3492 and RFC 5891, and works on nearly all JavaScript platforms.
Open stuff like URLs, files, executables. Cross-platform.
Style elements relative to other elements in CSS
Style form elements when they are empty