All items are re-rendered when filtering or adding items to the array #1721

alexbrad · 2016-07-12T15:22:57Z

When filtering or changing the array of items externally (by either adding or removing items), all the items are re-rendered. This happens because of the GroupNgRepeatExpression. Groups are tracked by $$hashKey and new groups are created whenever the array changes.

A solution would be to track groups by group name, since it is unique by definition. This can produce a significant performance improvement for large arrays of items. Is there any I am overlooking for which "track by $group.name" is not an option?

vlio20 · 2016-07-13T07:26:46Z

+1

Use "track by" to track groups of choices by their name instead of the $$hastKey. This way, existing items don't have to be re-rendered when the array of items changes. Closes angular-ui#1721

user378230 mentioned this issue Jul 12, 2016

Track groups by their name - Fix issue #1721 #1722

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user378230 closed this as completed in 1770038 Jul 15, 2016

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All items are re-rendered when filtering or adding items to the array #1721

All items are re-rendered when filtering or adding items to the array #1721

alexbrad commented Jul 12, 2016

vlio20 commented Jul 13, 2016

All items are re-rendered when filtering or adding items to the array #1721

All items are re-rendered when filtering or adding items to the array #1721

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alexbrad commented Jul 12, 2016

vlio20 commented Jul 13, 2016