angular-ui/ui-sortable

After dropping a dragged item a delay occurs as the data does the sorting

Open

#504 opened on Feb 10, 2017

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 (4 comments) (0 reactions) (0 assignees)JavaScript (1,264 stars) (451 forks)batch import
help wanted

Description

A dataset of 300 records in a table using ui-sortable has a 3-4 second delay after the item being dragged is dropped that appears to be related to sorting the newly ordered data that prevents any actions from occurring until complete, which includes any further dragging and even scrolling the page.

Contributor guide

Tech stack
javascript
Domain
frontend
Issue type
performance
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
AngularJSjQuery UIPerformance profiling
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Investigate the drop handler in ui sortable.js to understand the sorting logic that causes a 3-4 second delay with 300 records. Profile the JavaScript execution to identify bottlenecks, possibly in the DOM manipulation or model synchronization. Check if the issue is related to the digest cycle in AngularJS. Consider optimizing the sorting by using a more efficient algorithm or deferring the sort operation.