extend like a boss

The Node.js `util.deprecate()` function with browser support

Reads and caches the entire contents of a file until it is modified

Use node's fs.realpath, but fall back to the JS implementation if the native one fails

Regular expression for matching astral symbols

Create a stream that emits events from multiple other streams

Light ECMAScript (JavaScript) Value Notation - human written, concise, typed, flexible

merge() utility function

Convert directories to glob compatible strings

Flexible ascii progress bar

Expand placeholders in a template string

deep cloning of objects and arrays

Constant-time comparison of Buffers

A stream that emits multiple other streams one after another.

ASN.1 encoder and decoder

generator async control flow goodness

Recursive object extending

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

Extend an object with the properties of additional objects. node.js/javascript util.

delegate methods and accessors to another property