RSVP.js

The 'Promise' term in JavaScript represents the result of a task, which may or may not have completed yet. It basically refers to what to expect for a JavaScript AJAX call.

Promises/A+ is an unofficial open standard for helping and showing developers on how to deal with promise calls.

RSVP.js is a simple JS library that implements some of these concepts in JavaScript and allows AJAX developers to write applications modeled around this code behavioral pattern.

Works with client-side (browsers) and server-side (Node.js) environments.

RSVP.js is also compatible with Task.js.

What is new in this release:

• Bugfixes:
• Some onerror scenarios did not result in error notifications
• For more correctness internal optimization should only occur if constructors equal, not just if instanceof check passes

What is new in version 3.0.18:

• Bugfixes:
• Some onerror scenarios did not result in error notifications
• For more correctness internal optimization should only occur if constructors equal, not just if instanceof check passes

What is new in version 3.0.17:

• Bugfixes:
• Some onerror scenarios did not result in error notifications
• For more correctness internal optimization should only occur if constructors equal, not just if instanceof check passes

What is new in version 3.0.8:

• Custom onerror handler, for potentially unhandled errors would report unhandled errors in some incorrect scenarios.

What is new in version 3.0.2:

• Promise.all and Promise.race should reject, not throw on invalid input.
• Add RSVP.allSettled.

Requirements:

• JavaScript enabled on client side
• Node.js for server-side environments