Split functions into directories and separate files

[emilos]

Story

As a developer, I'd like to import a function per file so that the bundler I use has less work to do.

Acceptance criteria

• create directories per type (array, string, collection etc.)
• create a file per function (e.g. deepclone, capitalize etc. are in separate files)
• create an index file (array/index.js) that requires all deps from given dir and exports them
• tests should work as they do now

[inikonorov]

Hi! Is it okay?
#100

If I did what you need, so I'll update this PR by adding another functions :)

[emilos]

@inikonorov that's correct!

[inikonorov]

in 'string' methods there is 'index' method - i can't create file with this name, because the main file of folder already has the same name. what should I do?

[emilos]

good question. Maybe put it inside the index.js file that imports other files as a function at the top

[inikonorov]

okay

[inikonorov]

done!
#100

[emilos]

@inikonorov thanks so much for your time!