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Last updated : Oct 28, 2020
Not on the current edition
This blip is not on the current edition of the Radar. If it was on one of the last few editions it is likely that it is still relevant. If the blip is older it might no longer be relevant and our assessment might be different today. Unfortunately, we simply don't have the bandwidth to continuously review blips from previous editions of the Radar Understand more
Oct 2020
Trial ? Worth pursuing. It is important to understand how to build up this capability. Enterprises should try this technology on a project that can handle the risk.

With the increasing complexity of single-page JavaScript applications, managing state predictably is becoming more and more important. Immutability can help to ensure our applications behave consistently but unfortunately JavaScript doesn't offer built-in deeply immutable data structures (see the ES Record and Tuple proposal). Immer — German for always — is a tiny package that lets you work with immutable state in a more convenient way. It's based on the copy-on-write mechanism, has a minimal API and operates on normal JavaScript objects and arrays. This means that data access is seamless and no large refactoring efforts are needed when introducing immutability to an existing codebase. Many of our teams now use it in their JavaScript codebases and prefer it to Immutable.js, which is why we're moving it to Trial.

Apr 2019
Assess ? Worth exploring with the goal of understanding how it will affect your enterprise.

With the increasing complexity of single-page JavaScript applications, managing state predictably is becoming more and more important. Immutability can help to ensure our applications behave consistently, but unfortunately JavaScript doesn't natively support the ability to create immutable objects. Libraries such as Immutable.js filled that gap but introduced new problems because now two kinds of objects and arrays existed in the application, the library's version and the native JavaScript ones. Immer — German for always — is a tiny package that lets you work with immutable state in a more convenient way. It's based on the copy-on-write mechanism, has a minimal API and operates on normal JavaScript objects and arrays. This means that data access is seamless and no large refactoring efforts are needed when introducing immutability to an existing codebase.

Veröffentlicht : Apr 24, 2019
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