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⪽ remove items from a javascript array without generating garbage
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README.md

remove-array-items

remove items from a javascript array without generating memory garbage.

Build Status

Despite there being a number of "remove array items" in npm, I couldn't find satisfying all criteria:

  • doesn't generate garbage
  • performs similar or better to the native array.splice
  • has tests
  • es3+ compatible
  • works in both commonjs (node) and es modules (import)

so here we are.

originally inspired by https://gamealchemist.wordpress.com/2013/05/01/lets-get-those-javascript-arrays-to-work-fast/

(which is a gold mine for performant, non-garbage generating array operations by the way.)

api

removeItems(arr, startIdx, removeCount)

commonjs usage

const removeItems = require('remove-array-items')

const arr = [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ]

removeItems(arr, 3, 4)  // after running, arr === [ 1, 2, 3, 8, 9 ]

es module usage

import removeItems from 'remove-array-items'

const arr = [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ]

removeItems(arr, 3, 4)  // after running, arr === [ 1, 2, 3, 8, 9 ]
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