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- 'use strict'
-
- var splice = require('../constant/splice.js')
-
- // causes a stack overflow in V8 when trying to insert 100k items for instance.
-
- function chunkedSplice(list, start, remove, items) {
- var end = list.length
- var chunkStart = 0
- var parameters // Make start between zero and `end` (included).
-
- if (start < 0) {
- start = -start > end ? 0 : end + start
- } else {
- start = start > end ? end : start
- }
-
- remove = remove > 0 ? remove : 0 // No need to chunk the items if there’s only a couple (10k) items.
-
- if (items.length < 10000) {
- parameters = Array.from(items)
- parameters.unshift(start, remove)
- splice.apply(list, parameters)
- } else {
- // Delete `remove` items starting from `start`
- if (remove) splice.apply(list, [start, remove]) // Insert the items in chunks to not cause stack overflows.
-
- while (chunkStart < items.length) {
- parameters = items.slice(chunkStart, chunkStart + 10000)
- parameters.unshift(start, 0)
- splice.apply(list, parameters)
- chunkStart += 10000
- start += 10000
- }
- }
- }
-
- module.exports = chunkedSplice
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