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Discussion on: Some cool JavaScript Shorthand that will make your code cleaner than your peer's

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haaxor1689 profile image
Maroš Beťko •

Almost all of these I use pretty regularly and feel like every modern codebase should use them.
Here are some additional shorthands I use:

Range 1,2,3...n:

[...Array(n).keys()]
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Remove key from object:

const { key: _, obj } = object;
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Swap array items:

[arr[x], arr[y]] = [arr[y], arr[x]]
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shubhracodes profile image
Shubhra Agarwal •

Thank you for sharing this. I'm saving this comment for future reference

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Jon Randy 🎖️ • • Edited 
[...Array(n).keys()]
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Gives you a range 0 to n-1. For a range 1 to n, you could use:

// This (much faster)...
Array.from({length:n},(_,i)=>i+1)

// Or maybe this (shorter but slower)...
[...Array(n).keys()].map(i=>i+1)
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