JavaScript Just Leveled Up: ES2025 – You'll Fall in Love With (jsdevspace.substack.com)

> You’ll Fall in Love With

I'm going to press Circle to Doubt.

Oh look, every section header starts with an emoji. Gee, wonder who wrote this.

That said, it is nice that they finally borrowed the pipe-forward operator from the ML languages. Record and tuple syntax is gross though.

From the article:

  As front-end developers, staying ahead of JavaScript’s evolution isn’t optional — it’s survival.

  When the ES2025 proposals dropped, many developers (myself included) were shocked.

Isn't this hyperbole par excellence? There are some new language features, that is all. The whole article looks like written by this LLM prompt: "write about the new features of es2025 and hype it up as much as possible"

  when ({ status: s if s >= 500 }) -> throw new Error(’Server Error’)

Is it only me or this doesn’t look like JavaScript anymore?

This is written by an LLM. Can we have less of these on HN?

Hmm... one moment. The first example function they provide:

    function handleResponse(response) {
        return match (response) {
        when ({ status: 200, data }) -> data
        when ({ status: 401 }) -> throw new Error(’Unauthorized’)
        when ({ status: 404 }) -> throw new Error(’Not Found’)
        when ({ status: s if s >= 500 }) -> throw new Error(’Server Error’)
        default -> throw new Error(’Unknown Error’)
      };
    }

Is less readable to me than the way I would write it without the match/when construct:

    function handleResponse(response) {
        status = response.status;
        data   = response.data;
        if (status === 200 && data) return data;
        if (status === 401) throw new Error(’Unauthorized’);
        if (status === 404) throw new Error(’Not Found’);
        if (status  >= 500) throw new Error(’Server Error’);
        throw new Error(’Unknown Error’);
    }

The article lists all flashy JavaScript proposals, and none of them are part of the language.

Here’s what actually is new: https://2ality.com/2025/06/ecmascript-2025.html

how long til it's in the browser for these?

   const result = data
     |> Object.entries(%)
     |> (%.filter(([k, v]) => v != null))
     |> Object.fromEntries(%)
     |> Object.values(%)
     |> JSON.stringify(%)
     |> encodeURIComponent(%);

Looks kinda awful to me. Am I strange that I prefer the 'spaghetti' version?

I believe this article is largely wrong and misleading.

Pattern matching is still Stage 1, meaning it’s not a standard: https://github.com/tc39/proposal-pattern-matching

Pipeline operator is Stage 2 and won’t use the “|>” syntax: https://github.com/tc39/proposal-pipeline-operator

Why do people breezily say that a new and unfamiliar thing is more readable? What’s more readable is almost always the thing you are used to seeing.

Open article.

"X isn't Y — it's Z"

Close article.

> As front-end developers, staying ahead of JavaScript’s evolution isn’t optional — it’s survival.