main.ts
myFunction(){
this.service.getData().subscribe(
response => {
this.handleData(response);
},
error => console.log(error),
() => console.log('request done')
);
}
handleData(data: DataModel[]) {
forEach(data, async (item: DataModel) => {
// Perform some operations here
const apiResponse: APIResponse = await this.apiService.fetchData(item.endpoint);
const modifiedItem: DataModel = {
property: item.property,
value: this.customMethod(apiResponse.data)
};
switch (modifiedItem.property) {
case PropertyEnum.A: {
this.listA.push(modifiedItem);
break;
}
case PropertyEnum.B: {
this.listB.push(modifiedItem);
break;
}
default:
}
});
});
}
main.html
<div *ngFor="let item of listA">
<p>
{{item.value}}
</p>
</div>
It is evident that the current code structure may result in performance drawbacks. For example, making multiple server calls for each item can impact efficiency. How can we enhance the architecture to address such issues?
Is it possible to delay loading images until after other content has been displayed? Would incorporating a library like ng-lazyload-image be beneficial in this scenario? Given the dynamic nature of the data, how can we efficiently handle image retrieval and display within a loop?
An option could involve utilizing Promise.all to fetch all images at once. Yet, updating the DOM specifically for these images remains a challenge. Any suggestions on a more optimized approach to tackle this situation?
What strategies would you recommend for redesigning the solution to better accommodate the requirements?