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3 posts about trackby by 2 contributors.
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In this article, you will learn how to use trackBy with ngFor in Angular 8.
In Every Application performance is a big concern to run the application faster we need to check how our application is performing ,angular provides a method called trackBy which is used to track our incoming data.
There are couple of local variables with ngFor built-in structural directive provided by Angular, which I are used for getting the index of current element while iteration, for getting last or first element from the collection etc.
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