Rapise 8.0+

Starting from Rapise 8.0, the default JavaScript engine used is NodeJS v14.15.3 runtime. NodeJS v14 contains most of latest features of JavaScript including EcmaScript2015 (ES6) and beyond. You may see more detailed list of features here.

Rapise 6.7+

In versions prior to 6.7, Rapise used Microsoft JScript with WScript as the only available JavaScript engine.

Rapise 6.7 adds ability to run tests with NodeJS JavaScript engine. You may change the engine either globally for all tests or for a test individually.

Legacy

Rapise uses Windows Scripting Host (WSH) as a JavaScript engine.

The dialect of JavaScript supported by WSH is called JScript.

JScript itself is based on ECMAScript3 standard (download PDF).

Find JScript reference here.

You may see the differences between ECMScript versions here.

Version of JavaScript used by Rapise is highlighted on the screenshot.

We've attached JScript Reference in CHM format for your convenience.  To view it - unblock after download.