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perflog's Issues
Fix potential error when using window.requestAnimationFrame
The setInterval around the requestAnimationFrame can potentially run two animation frame requests if frames take long enough to render. This should be removed in favor of some way to reference the calling function inside of each frame that is rendered. Perhaps passing some sort of counter could work instead of the timing offset
Reference: https://github.com/hoffination/perfLog/blob/master/perfLog.js#L108
const COUNTER_LIMIT = 60; // number of frames to wait until load is assumed to have happened
function performanceOnLoad(callback) {
_performanceOnLoad(0, 0, callback);
}
function _performanceOnLoad(counter, elements, callback) {
window.requestAnimationFrame(() => {
let currentElements = document.getElementsByTagName('*').length;
if (currentElements === elements) {
if (counter > COUNTER_LIMIT) {
return callback(analyzePerformance());
} else {
counter++;
}
} else {
counter = 0;
elements = currentElements;
}
_performanceOnLoad(counter, elements, callback);
});
}
// Caller
performanceOnLoad(callback);
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