jquery/jquery-ui

Exposing menu opening delay as an option

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#2395 opened on Mar 11, 2026

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 (4 comments) (0 reactions) (0 assignees)JavaScript (11,194 stars) (5,390 forks)batch import
Behavior shared with 1.12Comp: Menuhelp wanted

Description

Currently the opening of parent menu item uses a delay of 300ms which cannot be changed.

I suggest moving the delay to an option so that this can be configured.

Contributor guide

Tech stack
javascript
Domain
frontend
Issue type
feature
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.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
basic knowledge of jQuery UI widget options
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80
Research direction
First, find the menu widget source file in the jQuery UI repository (likely ui/widgets/menu.js). Locate where the 300ms delay is hardcoded, typically in the open or close methods or in the options initialization. Then, add a 'delay' option with a default of 300ms and use that option instead of the hardcoded value. Ensure the option is documented in the widget's options list.