$w ( “#dataset1” ). onReady is useful for most datasets on a page if you have e.g. a getcurrentitem or other use that requires the dataset to be ready.
But on a dynamic page is it necessary to have " $w ( “#dynamicDataset” ). onReady or is the dynamicDataset always ready?
Hi 
You need onReady functions for pretty much anything that has this function to make sure everything will work okay.
Datasets usually take some time to get ready after the page finish loading, onReady functions make sure that your code will run as soon as the dataset is ready.
You can create the onReady functions here:
Hope this helps~!
Ahmad