you are righ, same as in the original, probably ypou might want to report the issue

I think you missed this test case for floats:

Test.it 'should work for floats', ->
    Test.assertEquals(arr2bin([2.718281828459045,2,true]),"100.101101111110000101010001011000101000101011101101")

so, do I get points for translation?

I think testing framework had some mayor updates and now it's breaking

ReferenceError: usersAnswer is not defined
    at Object.<anonymous> (/workspace/node/test.js:59:12)
    at Module._compile (node:internal/modules/cjs/loader:1159:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1213:10)
    at Module.load (node:internal/modules/cjs/loader:1037:32)
    at Module._load (node:internal/modules/cjs/loader:878:12)
    at ModuleWrap.<anonymous> (node:internal/modules/esm/translators:169:29)
    at ModuleJob.run (node:internal/modules/esm/module_job:193:25)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:530:24)
    at async importModuleDynamicallyWrapper (node:internal/vm/module:438:15)
    at async formattedImport (/workspace/node/node_modules/.pnpm/mocha@10.2.0/node_modules/mocha/lib/nodejs/esm-utils.js:9:14)
    at async exports.requireOrImport (/workspace/node/node_modules/.pnpm/mocha@10.2.0/node_modules/mocha/lib/nodejs/esm-utils.js:42:28)
    at async exports.loadFilesAsync (/workspace/node/node_modules/.pnpm/mocha@10.2.0/node_modules/mocha/lib/nodejs/esm-utils.js:100:20)
    at async singleRun (/workspace/node/node_modules/.pnpm/mocha@10.2.0/node_modules/mocha/lib/cli/run-helpers.js:125:3)
    at async exports.handler (/workspace/node/node_modules/.pnpm/mocha@10.2.0/node_modules/mocha/lib/cli/run.js:370:5)

NaN means "Not a Number". We basically call imaginary numbers, so since you are on the realm of imaginary numbers they are numbers so the result of summing NaN with other number will be NaN.

or not.... sorry unemployed person here

can't reproduce, so please try again or provide more details

You can create a new issue for that at https://github.com/codewars/content-issues/issues

You can create a new issue for that at https://github.com/codewars/content-issues/issues

updated

Added typescript translation

https://www.codewars.com/kumite/65541b4d3974cb6d83be180c?sel=65541b4d3974cb6d83be180c

upgraded version

Modified, kindly check again