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Mutate newDirtyPaths instead of creating a new array every iteration (#2559)

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* Mutate newDirtyPaths instead of creating a new array every iteration

* Switch to map + Array.prototype.concat.apply to improve readability

* Update editor.js
This commit is contained in:
Brendan
2019-08-19 11:19:24 -05:00
committed by Ian Storm Taylor
parent 0edcc89692
commit 6672f553e9
1 changed files with 5 additions and 5 deletions
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10
packages/slate/src/controllers/editor.js
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@@ -100,14 +100,14 @@ class Editor {
// Get the paths of the affected nodes, and mark them as dirty.
const newDirtyPaths = getDirtyPaths(operation)
const dirty = this.tmp.dirty.reduce((memo, path) => {
const dirty = this.tmp.dirty.map(path => {
path = PathUtils.create(path)
const transformed = PathUtils.transform(path, operation)
memo = memo.concat(transformed.toArray())
return memo
}, newDirtyPaths)
return transformed.toArray()
})
this.tmp.dirty = dirty
this.tmp.dirty = Array.prototype.concat.apply(newDirtyPaths, dirty)
// If we're not already, queue the flushing process on the next tick.
if (!this.tmp.flushing) {