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I can't get this to work fully though, the |
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Nevermind, got it to work: /**
* @param {any} value
* @returns {value is Iterable<*>}
*/
const isIterable = (value) => Boolean(value && value[Symbol.iterator]); |
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Just read this comment by @michaelfig in the
jsdoctypeparserrepo: jsdoctypeparser/jsdoctypeparser#50 (comment)It mentions the possibility of making assertion functions:
/** @returns {asserts foo is Bar} */I had no idea one could do this through JSDoc, I have so far always typed those functions using TypeScript definition files. Will surely try this out in future code, but wanted to share here right ahead so that I don't forget 👍
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