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[Refactor] Simplify normalizeDelimitedString #7565

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[Refactor] Simplify normalizeDelimitedString #7565

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4 changes: 4 additions & 0 deletions .jules/refactor.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
## 2025-05-15 - Prefer local helpers over inline Set for uniqueness
**Smell:** Manually creating `[...new Set(array)]` when a `uniq` helper exists in `common/array.ts`.
**Learning:** The codebase has a standard `uniq` utility in `@shopify/cli-kit/common/array` that wraps `Set` in a consistent way. Using it improves readability and follows the "Reach for an existing helper" philosophy.
**Action:** Always check `common/array.ts` for existing collection helpers before manual implementation.
16 changes: 9 additions & 7 deletions packages/cli-kit/src/public/common/string.ts
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import {takeRandomFromArray} from './array.js'
import {takeRandomFromArray, uniq} from './array.js'
import {unstyled} from '../node/output.js'
import {Token, TokenItem} from '../../private/node/ui/components/TokenizedText.js'

Expand Down Expand Up @@ -419,12 +419,14 @@ export function pascalize(str: string): string {
export function normalizeDelimitedString(delimitedString?: string, delimiter = ','): string | undefined {
if (!delimitedString) return

const items = delimitedString.split(delimiter).map((value) => value.trim())
const nonEmptyItems = items.filter((value) => value !== '')
const sortedItems = nonEmptyItems.sort()
const uniqueSortedItems = [...new Set(sortedItems)]

return uniqueSortedItems.join(delimiter)
return uniq(
delimitedString
.split(delimiter)
.map((item) => item.trim())
.filter((item) => item !== ''),
)
.sort()
.join(delimiter)
}

/**
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