ionic-team/ionicons

bug: Ionic v8 addIcon not working with composed name icons

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#1380 opened on May 18, 2024

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 (7 comments) (0 reactions) (0 assignees)TypeScript (17,256 stars) (2,083 forks)batch import
help wanted

Description

Current Behavior

I'm trying to use multiple ionic icons in my application, but only the simple ones are working for example: exit, calendar, add. If I try

it is not working.

Here are some examples:

html <ion-footer> <ion-list> <ion-menu-toggle menu="m1"> <ion-item lines="none" (click)="onLogout()" button> <ion-icon name="exit" slot="start"></ion-icon> <ion-label>Salir</ion-label> </ion-item> </ion-menu-toggle> </ion-list> </ion-footer>

ts

import { ellipsisVerticalOutline, exit } from "ionicons/icons"; import { addIcons } from "ionicons"; export class AppComponent implements OnInit, OnDestroy { ... constructor( private platform: Platform, //rivate splashScreen: SplashScreen, //private statusBar: StatusBar, private authService: AuthService, private locationService: LocationService, private router: Router, private menuCtrl: MenuController, private alertCtrl: AlertController, //private messagingService: MessagingService, // private translateService: TranslateService ) { this.initializeApp(); addIcons({exit,ellipsisVerticalOutline}); }

}

image

If I change html for: <ion-footer> <ion-list> <ion-menu-toggle menu="m1"> <ion-item lines="none" (click)="onLogout()" button> <ion-icon name="ellipsis-vertical-outline"></ion-icon> <ion-label>Salir</ion-label> </ion-item> </ion-menu-toggle> </ion-list> </ion-footer>

image

Not Working.

Expected Behavior

That the icon I'm using shows

Steps to Reproduce

Use some basic icons with no composed names like exit, calendar Then use some icons like

Code Reproduction URL

No response

Additional Information

No response

Contributor guide

Tech stack
typescriptjavascriptweb components
Domain
frontenddesign
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.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic understanding of Ionic icon usage
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Investigate the addIcons function in the ionicons source code (likely in src/ or dist/). The bug is that composed name icons like 'ellipsis vertical outline' do not render when added via addIcons, while simple names like 'exit' work. Check how addIcons maps imported icon objects to the name attribute. Possibly the parsing of icon names with hyphens fails or the expected key does not match. Look for any normalization or casing logic. The reproduction steps are clear: use addIcons with a composed name, then use that name in <ion icon>. Confirm the issue in a test environment. There are 7 comments on the issue; review them for any additional clues or attempts.