strange parts of language...
Why (! + [] + [] + ![]).length is 9 - DEV Community 👩💻👨💻
(! + [] + [] + ![]).length === 9
https://twitter.com/flaviocopes/status/1150649630767624192
Sunday, July 28, 2019
ObservableHQ, JavaScript Notebooks (from creator of D3.js)

from creator(s) of popular D3.js library
Observable
Observable: The User Manual / Observable / Observable
Five-Minute Introduction / Observable / Observable
Demo / Observable / Observable
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