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The implementation of Array as an object with restricted keys has the peculiar effect in that eliminating an element (as in delete a[1]) does not shrink the overall length of the collection; instead it creates a “hole”: an undefined entry without a key. The treatment of holes by various JavaScript facilities is inconsistent.3 The proper way to remove an element from an array without leaving holes is to use the splice() function. (The delete operator is intended to remove elements from objects.)
D3 for the Impatient
Philipp K. Janert
Messy perfectionists take over the world when they learn how to channel their enthusiasm into single, intentional missions they can execute in dynamic ways.
The Perfectionist’s Guide to Losing Control
Katherine Morgan Schafler
An automated cloud transformation layer also allows for data transforms to take place at different stages of the pipeline, offering the flexibility to experiment with ETL, ELT, and everything in between as your platform evolves.
How to Build a 5-Layer Data Stack
Barr Moses
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