Ques 1
What is the purpose of trackBy in ngFor?
The trackBy function is used in ngFor to improve the performance of rendering by helping Angular identify which items have changed, been added, or been removed in a list.
Example:
*ngFor='let item of items; trackBy: trackByFunction'
Save For Revision
Save For Revision
Bookmark this item, mark it difficult, or place it in a revision set.
Log in to save bookmarks, difficult questions, and revision sets.
Is it helpful?
Add Comment
View Comments