Bug description:
Date (datetime and range) picker generates the warning below on any month left/right arrow click, time up/down etc. The error (warning) is in the browser console:
NG0956: The configured tracking expression (track by identity) caused re-creation of the entire collection of size 2. This is an expensive operation requiring destruction and subsequent creation of DOM nodes, directives, components etc. Please review the "track expression" and make sure that it uniquely identifies items in a collection. Find more at https://v22.angular.dev/errors/NG0956
How to reproduce:
- create empty project and add ngx-bootstrap
- add
<input type="text" bsDatepicker> to the template
- open console and click month change right arrow
ngx-bootstrap: 22.0.0
Angular: 22.1.0
Bootstrap: 5.3.8
Build system: Angular CLI
Expected behavior
No warning should be generated.
The root cause of the problem is tracking by object like
@for (day of week.days; track day)
the
@for (day of week.days; track $index)
fixes it but I'm not sure if this is desired tracking.
Bug description:
Date (datetime and range) picker generates the warning below on any month left/right arrow click, time up/down etc. The error (warning) is in the browser console:
NG0956: The configured tracking expression (track by identity) caused re-creation of the entire collection of size 2. This is an expensive operation requiring destruction and subsequent creation of DOM nodes, directives, components etc. Please review the "track expression" and make sure that it uniquely identifies items in a collection. Find more at https://v22.angular.dev/errors/NG0956How to reproduce:
<input type="text" bsDatepicker>to the templatengx-bootstrap: 22.0.0
Angular: 22.1.0
Bootstrap: 5.3.8
Build system: Angular CLI
Expected behavior
No warning should be generated.
The root cause of the problem is tracking by object like
@for (day of week.days; track day)the
@for (day of week.days; track $index)fixes it but I'm not sure if this is desired tracking.