JSdoc template defaults syntax not work

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default for a type parameter
JSdoc default type parameter

🕗 Version & Regression Information

💻 Code

This is the demo code on your website

/** @template [T=object] */
class Cache { // hover `Cache` to see: 'class Cache <T = object>'
    /** @param {T} initial */
    constructor(T) {
    }
}
let c = new Cache()

When I copy those code, and use tsc to generate a .d.ts file. In that .d.ts file, Cache dose not have a generate template.

demo repo

🙁 Actual behavior

output .d.ts:

There is no template defaults, and event no template.

/** @template [T=object] */
export class Cache {
    /** @param {T} initial */
    constructor(T: any);
}

🙂 Expected behavior

output .d.ts should be:

/** @template [T=object] */
export class Cache<T = object> {
    /** @param {T} initial */
    constructor(T: any);
}

There is typo in code constructor(T) should be constructor(initial) (same as in handbook)

And with PR merged on September 9 I think it's implemented only in 4.5. In 4.4.4 you should see an error for [ character.
Works in 4.5.0-beta

I think it would be better to document a feature after it been released. 🙂

And by the way I'm really exciting about this feature. ❤️

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JSdoc template defaults syntax not work #46574

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JSdoc template defaults syntax not work #46574

Description

Bug Report

🔎 Search Terms

🕗 Version & Regression Information

💻 Code

🙁 Actual behavior

🙂 Expected behavior

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IllusionMH commented on Oct 29, 2021

xlfsummer commented on Oct 29, 2021

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