freeCodeCamp/curriculum/challenges/english/05-back-end-development-and-apis/managing-packages-with-npm/use-the-caret-character-to-use-the-latest-minor-version-of-a-dependency.md

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
587d7fb5367417b2b2512c03	Use the Caret-Character to Use the Latest Minor Version of a Dependency	2	301531	use-the-caret-character-to-use-the-latest-minor-version-of-a-dependency

--description--

Similar to how the tilde we learned about in the last challenge allows npm to install the latest PATCH for a dependency, the caret (^) allows npm to install future updates as well. The difference is that the caret will allow both MINOR updates and PATCHes.

Your current version of moment should be "~2.10.2" which allows npm to install to the latest 2.10.x version. If you were to use the caret (^) as a version prefix instead, npm would be allowed to update to any 2.x.x version.

"package": "^1.3.8"

This would allow updates to any 1.x.x version of the package.

--instructions--

Use the caret (^) to prefix the version of moment in your dependencies and allow npm to update it to any new MINOR release.

Note: The version numbers themselves should not be changed.

--hints--

"dependencies" should include "moment"

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/package.json').then(
    (data) => {
      var packJson = JSON.parse(data);
      assert.property(
        packJson.dependencies,
        'moment',
        '"dependencies" does not include "moment"'
      );
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

"moment" version should match "^2.x.x"

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/package.json').then(
    (data) => {
      var packJson = JSON.parse(data);
      assert.match(
        packJson.dependencies.moment,
        /^\^2\./,
        'Wrong version of "moment". It should be ^2.10.2'
      );
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

--solutions--

/**
  Backend challenges don't need solutions, 
  because they would need to be tested against a full working project. 
  Please check our contributing guidelines to learn more.
*/