feat(support): add more methods to ArrayHelper and StringHelper

[innocenzi]

This pull request adds many methods to ArrayHelper and StringHelper. This is stuff I had the need for when working on an upcoming console components overhaul PR.

Normally, I would send multiple PRs for each change, but there are too many. Reviewing this PR commit-by-commit might be easier.

Changes to ArrayHelper

• arr(null) instanciates an empty instance instead of [null]
• Added generics to first and last
• Added int support to get and has
• Added flatten and flatMap

Changes to StringHelper

• Instanciating StringHelper with null will no longer crash
• Added replaceAt, for replacing a portion of a string with another a the specified position
• Added insert, which inserts a string at the specified position
• Added limit, for truncating a string
• Added substr, which proxies mb_substr
• Added take, which keeps only the specified amount of characters
• Added split, which chunks the string using str_split
• Added stripTags, for stripping HTML tags in a string

[MrYamous]

Great work !
Some personal thoughts on names
replaceAt and insert have similarities in principle, WDYT about replaceAt and insertAt or replace and insert
limit is for truncating a string, what about truncate function ?

[brendt]

replaceAt and insert have similarities in principle, WDYT about replaceAt and insertAt or replace and insert

Agree, my preference is replace and insert, maybe we could also rename the position parameter to $at? Just a thought:

str()->replace(at: 5, …)

limit is for truncating a string, what about truncate function ?

I think truncate is a better name

[brendt]

But of course, great PR 👍

[innocenzi]

@MrYamous I agree, yes!

@brendt while I also like replace and insert, replace already exists. Do you suggest updating it with a new parameter? I think it would be better to go with replaceAt and insertAt to make it clearer.

Definitely agree with truncate though 👍

[innocenzi]

Ready for another review 👍

[brendt]

while I also like replace and insert, replace already exists. Do you suggest updating it with a new parameter? I think it would be better to go with replaceAt and insertAt to make it clearer.

Oh great point! Let's do that, no problem 👍

[brendt]

Btw, feel free to merge when it's done, no need waiting for me again :)

[brendt]

Ah, you already made the changes. Peeeeerfect 💪

[gturpin-dev]

Just updated the TODO of the ArrayHelper methods issue #543 😄