added Problem 25 to Euler

[byt3h3ad]

Welcome to JavaScript community

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Describe your change:

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Documentation change?

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new JavaScript files are placed inside an existing directory.
• All filenames should use the UpperCamelCase (PascalCase) style. There should be no spaces in filenames.
  Example:UserProfile.js is allowed but userprofile.js,Userprofile.js,user-Profile.js,userProfile.js are not
• All new algorithms have a URL in its comments that points to Wikipedia or other similar explanation.
• If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

[lgtm-com]

This pull request introduces 1 alert when merging f97bdc3 into 5f601fa - view on LGTM.com

new alerts:

• 1 for Missing variable declaration

[raklaptudirm]

Please fix the raised alerts.

[raklaptudirm]

Compute the fibonacci numbers and check their digits together in one function, so as not to redo all the calculations every iteration

[raklaptudirm]

Please add some jest tests.

[raklaptudirm]

@cclauss Could you determine why standard.js is saying "BigInt is not defined"?

[cclauss]

I do not do JavaScript.

[raklaptudirm]

@byt3h3ad One sec we need to update standard.js.

[byt3h3ad]

@byt3h3ad One sec we need to update standard.js.

yeah, no problem!

[raklaptudirm]

@byt3h3ad Please update this branch to show the latest code updates in the repository. That should fix the issue.

[byt3h3ad]

okay done @raklaptudirm