Convert scripts to ES6

[tejasbubane]

Use @babel/node to run them.

Also fix comments in scripts.

[SleeplessByte]

- function prepareAndRun(command, infoStr, failureStr) {
+ const prepareAndRun = (command, infoStr, failureStr) => {

Any reason you changed from function declaration to "assignment pattern" + arrow function expression? I know it's mostly a stylistic choice, but I think the explicit function reads better 🥇

Also, if you're not re-assigning variables, can you use const instead of let?

❤️ for this PR!

[tejasbubane]

Any reason you changed from function declaration to "assignment pattern" + arrow function expression? I know it's mostly a stylistic choice, but I think the explicit function reads better

Nothing specific. My personal preference of the shiny arrow function over normal function. I will change it back to function.

if you're not re-assigning variables, can you use const instead of let?

Makes sense. 👍

[SleeplessByte]

I don't mind the const x = () => {}, but I think it helps our junior contributors if it's more straightforward 🗡 I generally use function at the top level, and expression everywhere else.

[tejasbubane]

@SleeplessByte Fixed.

[SleeplessByte]

I think this means we can now do #628 ?

[tejasbubane]

@SleeplessByte Yup! #688