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Problem described in detail here evanw/esbuild#1743. In summary, esbuild transpiles the alpine/packages/alpinejs/src/evaluator.js Line 54 in 9146daa into a regular function, thereby making alpine/packages/alpinejs/src/evaluator.js Line 94 in 9146daa Firefox Developer Tools: I know it’s not directly Alpine’s fault. But I don’t see why we cannot use vanilla promises instead of this weird (but documented by MDN) way to dynamically create an async function. Apparently |
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Replies: 2 comments 6 replies
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Can you provide example of the expression you are getting the |
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Edit: Since Alpine v3 supports Sure, this error is triggered by any expression actually. To reproduce, Alpine must be transpiled by a bundler that transforms Steps to reproduce
import Alpine from "alpinejs";
Alpine.start();
<html>
<head>
<script defer src="dist.js"></script>
</head>
<body x-data="{}">
</body>
</html>
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Not really, As rightly pointed here evanw/esbuild#1743 (comment), I shouldn’t expect Alpine to work in environments without async support. Is async really required though? If changed to bare promises, we can keep the same |
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The AsyncFunction is used to do evaluation/maintain scope so I don't understand what you mean by "change to bare promises" as that wouldn't provide a way to do evaluation which is central to how Alpine works and usage in this instance. Seems like updating target for esbuild is only solution. I assume the advantage of using AsyncFunction is mostly for speed when initializing and being able to run asynchronous code in expressions so I don't expect it would change in v3. |
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Right, I didn’t know v3 supports |
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Async is ecma2017. I assume phoenix targets 2016 by default to support old browser like internet explorer but Alpine v3 dropped the support for those browsers. |
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Changing |
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Edit: Since Alpine v3 supports
awaitin expressions, it can only be used in environments with async support. See discussion in comments.Sure, this error is triggered by any expression actually. To reproduce, Alpine must be transpiled by a bundler that transforms
async, e.g. esbuild withes2016target.Steps to reproduce
src.js.dist.js.index.html.in…