InteractionContentfulPaint: toJSON() method
The toJSON() method of the InteractionContentfulPaint interface is a serializer; it returns a JSON representation of the InteractionContentfulPaint object.
Syntax
js
toJSON()
Parameters
None.
Return value
A JSON object that is the serialization of the InteractionContentfulPaint object.
Examples
Using the toJSON method
In this example, calling entry.toJSON() returns a JSON representation of the InteractionContentfulPaint object.
js
const observer = new PerformanceObserver((list) => {
list.getEntries().forEach((entry) => {
console.log(entry.toJSON());
});
});
observer.observe({ type: "interaction-contentful-paint", buffered: true });
This would log a JSON object like so:
json
{
"entryType": "interaction-contentful-paint",
"interactionId": 1704,
"largestContentfulPaint": <not shown>,
"name": "",
"navigationId": 2463,
"paintTime": 2589.3,
"presentationTime": 2616,
"startTime": 2226.6,
}
To get a JSON string, you can use JSON.stringify(entry) directly; it will call toJSON() automatically.