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Last active February 20, 2022 20:36
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Dictionary merging with shorthand argument names.
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tab_merging.swift
tabGroup1
.merging(tabGroup2, uniquingKeysWith: { $0 }) // ❌ “Contextual closure type `(Tab, Tab) throws -> Tab`
// expects 2 arguments, but 1 was used in closure body.”
tabGroup1
.merging(tabGroup2, uniquingKeysWith: { $1 }) // Referencing the second of the two-argument closure compiles fine.
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