Internals

JSF*ck - Does code weirdness affect execution performance?

16 min read

Checking if how we write JS can change the performance of its execution even if it is the same code?

Read

Can JSON.parse() be performance improvement?

15 min read

JSON.parse is a slow way to create copy of object. But can it actually improve performance of our code?

Read

V8 function optimization

34 min read

JS engines are complicated piece of software. I want to quickly explain one of the optimization techniques V8 is using to speed up your code execution.

Read

Is Symbol really useful?

13 min read

Symbols, underestimated feature introduced in ES2015. Does it have any other purpose than interview questions?

Read