Use streaming JSON to reduce latency on mobile

Re:Use streaming JSON to reduce latency on mobile by jannes on Monday February 19, 2018 @11:47AM (#16413918)

Does anyone know a JSON parser that parses an ArrayBuffer instead of strings? [1]

JSON.parse() only accepts strings.

The library that the article recommends also uses XMLHttpRequest with strings. [2]

The reason I'm asking is the maximum string length in 32-bit Chrome.

[1]: https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequ...

[2]: https://github.com/eBay/jsonpipe/blob/master/lib/net/xhr.js

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Re:Use streaming JSON to reduce latency on mobile by matharmin on Monday February 19, 2018 @12:17PM (#16414130)

If you want to parse more than 4GB of JSON in a browser, ArrayBuffer versus string isn't the most important criteria - you shouldn't parse a 4GB ArrayBuffer as a single chunk either. You can always convert between an ArrayBuffer and a string, but you'll want to compare parsers according to the ability to stream, as well as performance and memory efficiency.

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Re:Use streaming JSON to reduce latency on mobile by DvdGiessen on Monday February 19, 2018 @07:14PM (#16416861)

You could look into streaming parsers such as Oboe.js, which specifically support the use case of parsing JSON tree's larger than the available RAM[0]. Then again, when you're loading such huge JSON files into a 32-bit instance of Chrome, it is likely you should look for a totally different solution to your problem.

[0]: http://oboejs.com/examples#loading-json-trees-larger-than-th...

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