map packages

Generate source maps

Store information about any JS value in a side channel. Uses WeakMap if available.

Remap sequential sourcemaps through transformations to point at the original source code

Map over promises concurrently

Converts a source-map from/to different formats and allows adding/changing properties.

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

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

Store information about any JS value in a side channel. Uses WeakMap if available.

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

Trace the original position through a source map