topic description for example, there are often a large number of userid and itemid, in recommendation systems that seem to directly calculate the vector, of itemid, such as the calculation in gensim, or bow or skipgram, in neural networks, but their i...
use setInterval to implement multiple countdown. The code is as follows: responseDatatimeLeft var groupOn = responseData.groupOn for (let i = 0; i < 2; iPP) { var timeLeft = groupOn[i].timeLeft setInterval(() => { timeLeft-- ...
because the data parameters given by the background are different from those needed by the front end, the data given by the background is as follows (with multiple layers of nesting): code: null id: 1 name: "" parentId: null sort: null type: ...
java.lang.NullPointerException Attempt to invoke virtual method int android.graphics.Bitmap.getWidth () on a null object reference parse the original 1 com.android.webview.chromium.WebViewContentsClientAdapter.getDefaultVideoPoster (WebViewCont...
After b.html introduces header.html through ajax, the b page sets its own style is invalid, what is the reason? ...
problem description take over a new database, today found table data 50G, and then various indexes 75G, of which three large indexes are each around 23g, and most of the large indexes are bound to timestamps. what result do you expect? What is the e...