Index Function vs Square Bracket

RE: Index Function vs Square Bracket

davel001150 — Thu, 14 Nov 2024 20:07:52 GMT

I think the practical upshot most of the time is that the square brackets are far more susceptible to pink box crashes. I've not seen a tremendous problem with using index() all the time.

RE: Index Function vs Square Bracket

Stefan Helzle — Thu, 14 Nov 2024 14:01:39 GMT

Correct. The difference between a reference and the actual value is a very basic programming concept and you will find a lot of explanations in the internet.

RE: Index Function vs Square Bracket

Dinesh Arumugam — Thu, 14 Nov 2024 13:44:10 GMT

and Square brackets is a pointer or link to the original data right ?

to understand this i coded :

the 6th line : its pointing to original data .

but when i try to change the local!b, the original data not getting changed ,

if this is wrong code plz show me a code to understand the difference between copy of the data,reference

RE: Index Function vs Square Bracket

Stefan Helzle — Thu, 14 Nov 2024 13:30:12 GMT

Correct

RE: Index Function vs Square Bracket

Dinesh Arumugam — Thu, 14 Nov 2024 12:07:53 GMT

which means index duplicating the actual values and storing them in a new memory location(local) right?
ex : local!a : index(ri!detail,1,null)

RE: Index Function vs Square Bracket

Stefan Helzle — Thu, 14 Nov 2024 11:37:09 GMT

The issue with index() is, that it returns a copy of the data, but not a reference. Square brackets return a reference you can use as a saveInto target.

RE: Index Function vs Square Bracket

Dinesh Arumugam — Thu, 14 Nov 2024 10:19:13 GMT

if we use index(in target) in saveInto the null value only be saved in ri right

RE: Index Function vs Square Bracket

Dinesh Arumugam — Thu, 14 Nov 2024 09:48:35 GMT

Its access denied

RE: Index Function vs Square Bracket

Karumuru Abhishek — Tue, 29 Oct 2024 11:30:38 GMT

hi Dinesh Arumugam try taking some text field component and have one saveinto with square bracket logic and another with index. you might see the difference

RE: Index Function vs Square Bracket

venkatrea696188 — Tue, 29 Oct 2024 11:29:04 GMT

https://community.appian.com/discussions/f/general/35388/index-function-or-index-by-the-dot-in-a-variable-example-local-user-name This thread might help ,

plus point of index function is it help's in handling null values

[quote userid="56759" url="~/discussions/f/best-practices/37846/index-function-vs-square-bracket/142276"]. it is crucial for using more complex data structures in saveInto where index() might not work.[/quote]

This is the drawback of index function

RE: Index Function vs Square Bracket

Dinesh Arumugam — Tue, 29 Oct 2024 11:23:11 GMT

how do i test that or know and what is the different between copy of the data and reference to the original data

RE: Index Function vs Square Bracket

Karumuru Abhishek — Tue, 29 Oct 2024 10:52:51 GMT

hi Dinesh Arumugam There is one important difference. index() returns a copy of the data. square-bracket-notation returns a reference to the original data. it is crucial for using more complex data structures in saveInto where index() might not work.