Number separator failing: Identifier directly after number

[amejiarosario]

🐛 Bug Report

From Node.js 12.5.0, there's support for Number separators. However, Jest doesn't seem to recognize it.

It returns this error:
Identifier directly after number

To Reproduce

Steps to reproduce the behavior:

Include a number separator in the code. E.g. const n = {1_000: 'Thousand'};.

Expected behavior

It should work without problems. I tried in the node.js console and it's working.

Link to repl or repo (highly encouraged)

Repo: amejiarosario/dsa.js-data-structures-algorithms-javascript@02034a3#diff-3599aee56da29942b69dc0f309f6f5ab

envinfo

  System:
    OS: macOS Mojave 10.14.6
    CPU: (12) x64 Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
  Binaries:
    Node: 12.16.1 - ~/.asdf/installs/nodejs/12.16.1/bin/node
    npm: 6.14.4 - ~/Code/dsa.js/node_modules/.bin/npm
  npmPackages:
    jest: 25.2.7 => 25.2.7 

[jeysal]

Hi, apparently Babel does not support the syntax by default yet. To fix this, you can either enable the corresponding Babel syntax plugin (see Babel docs) or disable the Babel transform (see Jest docs).

[SimenB]

babel/babel#7660 would have solved it as well

[github-actions]

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