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

Safer Node.js Buffer API

Allows users to use generators in order to write common functions that can be both sync or async.

Buffers events from a stream until you are ready to handle them.

[](https://travis-ci.org/stefanpenner/get-caller-file) [](https://ci.a

process.nextTick but always with args

Fast (and loose) selective `process.env` replacer using js-tokens instead of an AST

Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.

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

An implementation of WHATWG AbortController interface.

Fast deep equal

Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.

Merge multiple streams into one stream in sequence or parallel.

Create a stream that emits events from multiple other streams

JS plugin of preview PDF for mobile. web/h5/移动端PDF预览手势缩放插件

Constant-time comparison of Buffers

ES2015 `Object.assign()` ponyfill

extend like a boss

return list of CallSite objects from a captured stacktrace

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