For a thorough understanding of my query, I feel the need to delve deeper. While I am well-versed in solving this issue with vanilla Javascript that is compatible with typescript, my struggle lies in figuring out how to invoke this function throughout the application in typescript. Given the single-threaded nature of Javascript, I assume the same applies to typescript as well.
Is there a way to incorporate a checker that continuously assesses whether an element is within view during runtime?
To provide more insight into the situation, additional details would be useful. It should be noted that this issue is not specifically related to TypeScript. In a general sense, if you need to determine whether an element is within view, follow these steps:
For each event listed in a), execute the method defined in b) and relay the state change information to relevant parties. Assuming this pertains to web and DOM operations, events such as window.onload, window.onorientationchange, and window.onscroll should be considered. Regarding what constitutes 'in viewport,' it could range from partially visible to fully within sight. This can be determined through fundamental calculations involving the bounding rectangle of the element and the dimensions of the viewport.
To detect scrolling, you can employ a HostListener on the scroll event
@HostListener("window:scroll", ['$event'])
onWindowScroll(event) {
//Implement your logic here
}
If you need to determine if an element is partially visible in the viewport, take a look at this solution Check if element is partially in viewport
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