Is there a way to execute a Node 6 npm package within a Node 5.6.0 environment?

I am currently utilizing a tool called easy-sauce to conduct cross-browser JavaScript tests. Essentially, my package.json file references this tool for the test command:

{
  "scripts": {
    "test": "easy-sauce"
  }
}

Everything runs smoothly when I execute npm test in a Node 6 environment. However, the specific project requires Node 5.6.0. Upon running npm test in this environment, the error below is displayed:

/data/projects/easytest/node_modules/easy-sauce/lib/cli.js:114
function formatResult(result = {}) {
                         ^

SyntaxError: Unexpected token =
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:387:25)
at Object.Module._extensions..js (module.js:422:10)
at Module.load (module.js:357:32)
at Function.Module._load (module.js:314:12)
at Module.require (module.js:367:17)
at require (internal/module.js:16:19)
at Object.<anonymous> (/data/projects/easytest/node_modules/easy-sauce/bin/easy-sauce:6:13)
at Module._compile (module.js:413:34)
at Object.Module._extensions..js (module.js:422:10)

Is there any way to resolve this issue and make it functional within the Node 5.6.0 environment?

javascriptnode.jsnpmecmascript-6

Answer №1

The issue does not stem from the easy-sauce package, but rather from your current version of node.

As indicated on node.green, default parameters were introduced in version 6.2.2.

Regrettably, running the code on node 5 will not be feasible. Default parameters are only available starting from node version 6.2, hence the error encountered.

Answer №2

Choice 1 Consider upgrading your node/npm version, although this may not always be feasible based on the deployment environment.

Choice 2 Utilize a transpiler like Babel to convert your ES6 code to ES5 and then reference the generated script. This option is within your control.

Choice 3 Modify/upgrade the easy-sauce package to include a transpiler for generating an ES5 version (commonly found in the dist folder). Update the package.json file to point to this location for seamless integration.

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