Pregunta 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'
Guardar para repaso
Guardar para repaso
Guarda este elemento en marcadores, marcalo como dificil o agregalo a un conjunto de repaso.
Inicia sesion para guardar marcadores, preguntas dificiles y conjuntos de repaso.
Es util?
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