Removing element in a list without index

[lukas_b_98knm]

Hi,

I would like to delete a value within a list if the user clicks on a component. However, I only find the block which allows for deletion based on index, not value. Is there a way to delete a value within a list based on searching for a string?

E.g. within the list “Interests”, there are “Sports”, “Music”, “Reading”. I do not know at which index those elements will be located. Hence, I need to search based on the string, not index.

Please let me know if you have any suggestions.

Thanks,
Lukas

[domhnallohanlon]

What if you had non-unique values in the list, would it delete all “Sports” or just the first occurrence of “Sports” that it finds?

There’s are also Tutorials and DIY Guides about making a Search Bar in your app that you might find useful:

Making a Search Bar

Note: This tutorial was updated in June 2020 to reflect the new when Text Input Changes block, which makes adding a search bar to your app much easier! This post will talk about creating a search bar for your app. Search Bars are great if you have a lot of text items or List Viewer options that you want to make available to the user without having a lot of items on the Screen at once. This post will describe how to make a search bar with a search button and a search bar that updates automatic…

[lukas_b_98knm]

All the values are unique, but what I am asking is how do I remove the unique value if I do not know the index? The # implies that I know the index of the value I want to delete, right? The issue is that I do not know the index, but rather just the value.

[domhnallohanlon]

You could use the “find first occurrence in list” block @lukas_b_98knm