2022 03 19 Use Map instead of Object

Use Map instead of Object

• Status: accepted
• Date: 2022-03-19

Technical Story: {description | ticket/issue URL}

Context and Problem Statement

Javascript has evolved and now propose a Map data structure It can replace the Object for data structure manipulated by algorithm

Decision Drivers

• Purpose, Map is dedicated to what we want to do
• Performance, Map allow better performance
• Implementation, Map does not come with the Object drawbacks (property intersection, object redefinition, etc)

Considered Options

• Migrate from Object to Map
• Stay on object

Decision Outcome

Chosen option: "Migrate from Object to Map", because of all the gain and for the right purpose of using it.

Positive Consequences

• Better performance
• Data structure tailored to our needs

Negative Consequences

• No jest matcher for Map

Links

• Map vs {}