SSENSE/vue-carousel

Bug: When items are loaded asynchronously the carousel starts at the last pagination dot

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#188 opened on Apr 24, 2018

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 (9 comments) (2 reactions) (0 assignees)JavaScript (1,705 stars) (513 forks)batch import
buggood first issuehelp wanted

Description

If you add in the slides with a v-for and get the data inside those async, like for example an AJAX request then the pagination starts at the last dot.

Here's a JSFiddle to illustrate it https://jsfiddle.net/mor7m8s8/1/

I've used a set timeout to simulate the delay but it occurs just the same with an AJAX request.

Contributor guide

Tech stack
vuejavascript
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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
Basic Vue knowledgeUnderstanding of async data loading
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
The bug occurs because the pagination component initializes its active index before async data (slides) are loaded. Investigate the carousel's pagination component logic in the repository, specifically how it sets the initial active dot when slides are added dynamically via v for with async data. Look at the component's mounted hook or watchers on the slides prop. The provided JSFiddle (https://jsfiddle.net/mor7m8s8/1/) simulates the issue with a timeout; reproduce and trace the index assignment. The fix likely involves resetting the pagination index or reacting to slides changes properly.