Proposal-nullish-coalescing Alternatives

proposal-nullish-coalescing reviews and mentions

• Unveiling Breakthroughs Found In The State Of JS 2022 Survey
  5 projects | dev.to | 12 Jan 2023

  For more info about this feature, you can refer to the original proposal.

• Javascript: El operador nullish-coalescing
  2 projects | dev.to | 9 Dec 2022

  Propuesta

• PEP 505 – None-aware operators (2015)
  2 projects | news.ycombinator.com | 2 Aug 2022

  For comparison, here are the Javascript RFCs for the equivalent operators:

  https://github.com/TC39/proposal-optional-chaining

  https://github.com/tc39/proposal-nullish-coalescing

  IMO optional chaining is a lifesaver when dealing with deeply nested JSON, and it's become indispensable in our Typescript code. But we also deal with JSON from various third-party endpoints in Python, and far too often we resort to an inefficient deep_get utility to make our code sensical.

  > if json?.get("foo")?.get("bar")?[0]?.get("baz")

  may seem messy but would be infinitely better than the fragile (note the nested list-of-a-single-dict, and how bugs can appear if it's not there):

  > if json.get("foo", {}).get("bar", [{}])[0].get("baz")

  or the inefficient

  > if deep_get(json, "foo.bar.0.baz")

  It's not nearly as good as the Typescript json.foo?.bar?.[0]?.baz - but it's good enough!

• Stage 4: Nullish Coalescing for JavaScript
  1 project | dev.to | 17 Oct 2021
• Using the optional chaining operator in JavaScript
  1 project | dev.to | 22 Mar 2021

  The nullish coalescing proposal provides a way to handle undefined or null values and provide default values for the expression. You can use the “??” operator to provide a default value for an expression.

• A note from our sponsor - InfluxDB
  www.influxdata.com | 28 Apr 2024

  Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality. Learn more →