What dose import mean here ?

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1

I try to learn “Cascading Form”

Unfortunately ,from here I can not fine a index of the relative content to learn. I learned and understood, for dropdown: options", onChange(), placeholder, value, enable(), ect. but I couldn’t find the content regarding to
" import {usStates, canadaStates} from ‘public/states’;".
I want to know what content i have learn in order to understant the sentence above. The followingt is the relative image.

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In order to run the program, i delete " import {usStates, canadaStates} from ‘public/states’;", and create two array that are usStates and canadaStetes, see the image below, but it is still not to work. I want to know why , Thank you in adwance.

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2

Hi,
Import is an npm concept used to import functionality from another file or module.
In your case, note that the sample code has 2 files, and the import gets the array of states from another file:

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You should make sure to create a similar page or create an inline array that’s built the same.

3

Hi Ohad, Thank you for responding.
I put a key word “npm” that you given into the wix help centre, unfortunately, found no thing for npm. Can you give the more detail about npm. Can you show me the keywords that can be found in wix
help centre

or in API

If you do that way it maybe more effective to me.