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JavaScript start-up performance using JSON.parse

danielpdev
Fullstack JS Web Dev with Angular, ExpressJS and DynamoDB
・1 min read

Original article on v8.dev

This optimization only applies if you have an application where the startup uses a large configuration object > 10Kb.

When you load the application and the object you are using at startup it is > 10kb, then formatting the configuration object as a string and using JSON.parse during running can give you a nice performance improvement (1.7 × as much as possible fast).

JSON.PARSE TRICK

Discussion (1)

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Ryan Westlund

Wow... that's really interesting.