feat: add transformKeysToSnake

[jsertx]

Description:

• Add transformKeysToSnake

New features:

• transformKeysToSnake

PR status:

• Version bumped
• Change-log updated
• Tests added or updated
• PR keeps 100% test coverage
• Type definition updated
• Readme updated
• Linter is applied
• Const arrow functions are used instead of pure function definitions where applicable
• Functions are listed in alphabetic order in index.js, index.d.ts and readme

[avsek477]

rest, lgtm

[tarcisiozf]

should we have a deep/recursive flag to inform that nested objects should also be applied?

[jsertx]

What do you propose, the following?

const transformKeysToSnakeCase = (obj, { recursive } = {}) => {
  if (Array.isArray(obj)) {
    return obj.map(item => transformKeysToSnakeCase(item))
  }

  if (!isPlainObject(obj)) {
    return obj
  }

  return Object.fromEntries(
    Object.entries(obj).map(([k, v]) => [
      snakeCase(k),
      recursive ? transformKeysToSnakeCase(v) : v
    ])
  )
}

[tarcisiozf]

yeah, I give the consumer more control

[vigan-abd]

need to update package-lock.json as well