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Faster apps with JSON.parse (Chrome Dev Summit 2019)

Chrome for Developers

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YouTube
  • Recommended by 1 person: 1 in engineering communities.
  • Presented by Mathias Bynens
  • Made by the vendor. The company whose product it covers made or sponsored it.
  • May be out of date. Uploaded 6 years ago, in an area where tools change fast.

Intermediate. Assumes working knowledge.

315K views6 years ago1 recommendation

Web developmentSystems programmingWeb performanceJavaScript

Mathias Bynens explains why parsing JSON is faster than parsing JavaScript object literals and how to leverage this for performance.

Because the JSON grammar is much simpler than JavaScript’s grammar, JSON can be parsed more efficiently than JavaScript. This knowledge can be applied to improve start-up performance for web apps that ship large JSON-like configuration object literals (such as inline Redux stores). Presented by: Mathias Bynens - goo.gle/2Oh2tq6 More info → goo.gle/33czWGH #ChromeDevSummit All Sessions → goo.gle/CDS19 Subscribe to Google Chrome Developers → goo.gle/ChromeDevs Event photos →  goo.gle/CDS19Photos event: Chrome Dev Summit 2019; re_ty: Publish; product: Chrome - General; fullname: Mathias Bynens;

Why it's here

1 person recommends this

What people say. Highly recommended for explaining the performance benefits of using JSON.parse over JavaScript object literals.

u/ConfidentMushroomin r/Frontend • Recommends

TIL JSON.parse is faster than js object literal
159View on Reddit

u/SamchonFrameworkin r/typescript • Mentions

On “A new library creating object 1.5 ~ 2x faster through JSON.parse()”

link to this video Your analysis is exact. I've published this library as I'd inspired by the youtube video what chrome team had made, but writing very long (8MB) literal object like the video is very abnormal case. However, I've another point of view. As you know, this is not a commercial project, but an open source project. Meaning or usefulness is such an import matter? I don't consider of it developing the open source project.
4View on Reddit