Jullian Mercier – Medium

Jullian Mercier

Swift (peer) macros

Macros are a new Swift feature, part of the Swift standard library (currently available with Xcode 15 beta) to generate repetitive code at…

Jul 9, 2023

Jul 9, 2023

Swift Package Manager — Integrating resources

Declaring resources

Dec 24, 2020

Dec 24, 2020

Combine — Collect() operator

`collect()` is a powerful operator that enables us to receive all at once the outputs from a publisher.

Nov 9, 2020

Nov 9, 2020

SwiftUI — Creating a custom @Environment

SwiftUI enables us to access common pieces of information throughout the app using `@Environment` objects avoiding the cumbersomeness of…

Oct 25, 2020

Oct 25, 2020

Combine — Single-valued publisher

While creating a custom operator out of Combine’s built-in ones in the `Publisher` extension is a useful (and quick!) technique to…

Apr 3, 2020

Apr 3, 2020

Swift — @propertyWrapper with Publisher

Property wrappers are one of Swift’s major new features enabling us to attach some specific behavior each time a property gets accessed or…

Mar 21, 2020

Mar 21, 2020

Combine — Creating a custom subscriber

While Combine provides with a `sink` method that conveniently « creates the subscriber and immediately requests an unlimited number of…

Feb 23, 2020

Feb 23, 2020

Swift — Leveraging the power of first-class functions

Functions, in Swift, are first-class citizens that can be passed as arguments, stored in properties or returned from functions.

Feb 16, 2020

Feb 16, 2020

Combine — share() and multicast()

Combine is designed around structs — which are value types — ensuring that a copy is made by the system whenever a resource is stored in a…

Jan 2, 2020

Jan 2, 2020

Combine — switchToLatest()

switchToLatest() is one of the most powerful operator in Combine at it enables us to switch entire publisher subscriptions on the fly…

Dec 8, 2019

Dec 8, 2019

Jullian Mercier

Jullian Mercier

Senior iOS engineer. jullianmercier.com. @jullian_mercier. Currently looking for new job opportunities.

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