proposal-upsert
ECMAScript Proposal, specs, and reference implementation for Map.prototype.upsert (by tc39)
proposal-do-expressions
Proposal for `do` expressions (by tc39)
| proposal-upsert | proposal-do-expressions | |
|---|---|---|
| 5 | 19 | |
| 165 | 1,066 | |
| 0.0% | 2.3% | |
| 10.0 | 0.0 | |
| over 1 year ago | about 3 years ago | |
| HTML | HTML | |
| MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
proposal-upsert
Posts with mentions or reviews of proposal-upsert.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-12-01.
- Map.prototype.emplace
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When using 'new Map()' object, what is the simplest way to implement checking if a value exists then incrementing it by 1? (If not found, initialize to 0)
There's a stage 2 proposal for map.emplace() that's exactly what you're looking for:
-
Set methods proposal reaches stage 3
I'm also looking forward to map.emplace() and arr.group() and iterator helpers.
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Is there a concise way to set a key's initial value in a Map object?
Sounds like you want emplace?
-
[AskJS] What are still present issues in contemporary (2022) JavaScript?
There's a proposal to give [emplace to maps](https://github.com/tc39/proposal-upsert).
proposal-do-expressions
Posts with mentions or reviews of proposal-do-expressions.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-08-18.
-
TypeScript Is Surprisingly OK for Compilers
> no pattern matching/switch expressions
They're still waiting on the do expression proposal for that (https://github.com/tc39/proposal-do-expressions), which has been in the bikeshedding stage for the past five years.
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[AskJS] Opinions on using self executing functions as multi-line expressions.
At some point, it may be superseded by do blocks, but for now it's really your best bet.
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What is this called? { id ? <Dashboard/> : <Login/> } and can I make it check for multiple things like a switch case?
But there is a proposal for do-expression : https://github.com/tc39/proposal-do-expressions
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Using {Blocks} in Rust & Go for Fun & Profit
It's also the reason why do expressions are my most anticipated feature for JS.
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Pipe Operator (|>) For JavaScript
> They should repurpose `do` so that `do {}` (without the `while`) is an expression that you can put statements inside and return the last statement.
There's a proposal for precisely that. Unfortunately, only Stage 1 though.
https://github.com/tc39/proposal-do-expressions
- Is a single ternary operator inside the returned JSX acceptable?
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[AskJS] Is there ever a good use for loose blocks in JS?
It's one of the main reasons why I really want the do-expression propsal to work out, because then it would become:
- The TC39 Process
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[AskJS] What are still present issues in contemporary (2022) JavaScript?
Do blocks. Okay, this is actually a proposal so maybe someday. Basically blocks that can resolve to an expression.
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'The best thing we can do today to JavaScript is to retire it,' says JSON creator Douglas Crockford • DEVCLASS
Tomorrow, do expressions:
What are some alternatives?
When comparing proposal-upsert and proposal-do-expressions you can also consider the following projects:
webpack-common-shake - CommonJS Tree Shaker plugin for WebPack
native-messaging-bash - Bash Native Messaging host.