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