Creating a dynamic table for my application has been quite challenging. I've implemented @Input parameters to pass crucial information such as headers and elements for the table.
The input structure for the generic table component is as follows:
@Input()
public tableElementsList: any = [];
@Input()
public headerTitles = [];
@Input()
public maxRecordCount: number;
To utilize the table component, it's called in the following manner:
<table-component [tableElementsList]="arrayElements"
[headerTitles]=headElementsArray maxRecordCount=5></table-component>
In order to populate the "arrayElements" array with data queried from the database using a service, the service is invoked within the onInit method of the page.
ngOnInit() {
this.myService.queryDataFromDatabase().subscribe(
(data: ObjectDTO[]) => {
data.forEach((objectDTO: ObjectDTO) => {
this.arrayElements.push(objectDTO);
});
},
error => {
console.log(error);
}
);
}
The problem arises when the table component loads before the service call is completed, resulting in an empty "arrayElements". This mini-conundrum stems from JavaScript's asynchronous nature, leaving me pondering on how to ensure the table component waits for the data to be loaded into the array before rendering.