JS object literals slower than JSON.parse()

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The cost of JavaScript in 2019 § The cost of parsing JSON:

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).

It then backs that up with some data.

If this is true, this package may be able to lose some bundle size by no longer supporting the JS-literal option — or at least making it tree-shakeable when unused.