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Which ECMA java script standard does Nightwatch js supports in its latest release? I tried searching for this info in many other websites but couldn't get the same. Can anyone provide some info on this.

Manoj Kodagali
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    This is an invalid question. It's like asking: "If I print this document on my printer, what colour will the paper be?" ECMAScript adherance is only relevant for the browsers and for javascript compilers/polyfills – Multihunter Dec 09 '16 at 18:30
  • Its a valid question. I saw a documentation for Node js that its supports JacaScript ECMA-262 specifications. Links: https://nodejs.org/en/docs/es6/ I want to know the same for Nightwatch js as its also built on Node js. – Manoj Kodagali Dec 12 '16 at 08:43
  • Node.js is standalone javascript runtime evaluation software. It's not a javascript library. In my analogy, Nightwatch js is the document, and Node.js is the printer. – Multihunter Dec 14 '16 at 06:38
  • Sorry for being obtuse to begin with. What I'm suggesting is that you should not confuse [a library for a runtime environment](http://stackoverflow.com/questions/5372852/meaning-of-runtime-environment-and-of-software-framework). What I mean to say is; whether the browser supports ECMAScript 5 or ECMAScript 6 has nothing to do with the Nightwatch js libraries, it's **purely** about _your_ code and _your_ "environment". The question you want to ask is: "Should I write javascript code that is not ECMAScript 5 conformant?". Which is also the question that has been answered. – Multihunter Dec 14 '16 at 06:43

2 Answers2

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It is recommended to use Nightwatch.js with ECMAScript 5. However, if your team is shifting to ECMAScript 6, then you can integrate tools like Babel or Traceur(popular Javascript transpilers) into your project. Writing Nightwatch tests directly using ECMAScript 6 is not advisable at this stage because some versions of browsers still don't support the latest JS standard.

ValyriA
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  • Thanks for the answer.I read in nightwatch js email list saying some work is going around this.Not sure when this will be available to users. – Manoj Kodagali Dec 13 '16 at 12:51
  • Yes, it's probably going to take some time. They still have several unresolved issues on different browsers with the latest javascript standard. – ValyriA Dec 13 '16 at 18:30
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It doesn't support ECMA 6.

Several people use a require babel on the header of the files since they had multiple issues creating Promises on top of Selenium, however, bugs are expected.

Reference

joaumg
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