Generally you want to have some code example of what it is you are trying to do and where you are stuck to ask a question here. However this was not hard to visualize and I felt like building an example. Here I have created a GUI that has 2 buttons and one label. I … Read more
Either isn’t simply a union of types; it’s a tagged union, which means every value has to explicitly specify which “side” of the type the wrapped value occurs on. Here’s an example, (with a Show instance derived for your Card type): *Main> Card Hearts Jack <interactive>:3:13: error: • Couldn’t match type ‘Court’ with ‘Either Pip … Read more
You can’t, per se. You have two different programs running on two different computers. The fact they are written in the same programming language is beside the point. The closest you can get is to write some client-side JavaScript that will show the alert when it receives a message over the network, and some server-side … Read more
You have not posted any code or idea of your own, hence I can’t comment or tell you very specific things to your idea/code. But I’d try to be broad enough for this. Using a special node like status and setting it to online and offline will be a good idea. You can use orderByChild() … Read more
I would choose Factory. With this pattern you can easily create your new object and along with it anything you need. You juste need to pass the right parameters to your service. check these docs for creating Factory pattern in SYmfony https://symfony.com/doc/current/service_container/factories.html solved Where I should put the model creation code? [closed]
by setting minTime and minDistance to 0 you will get a dead phone. by the docs: To obtain notifications as frequently as possible, set both parameters to 0. you will just get very very rapid responses and also the battery drain on a device will be horrendous. solved If I do not define any time … Read more
First of all, use a memory profiler such as YourKit to figure out what it is exactly that’s consuming the memory (for example, it could be due to the accidental retention of some unneeded references). Once you understand how your program is actually using the memory, you can formulate a plan of attack. solved out … Read more
Take a look at the Google Charts API. You can use it to generate a URL that represents your graph. Simply download the image associated with that URL and you have your chart. 2 solved generating chart using python or google charts [closed]
how Can updated current user position in Google map . when i run the below pgm first time it gives me the mycurrent position only [closed] solved how Can updated current user position in Google map . when i run the below pgm first time it gives me the mycurrent position only [closed]
You have two nested loops that each execute anyLines.length times. If there are four lines in the file, the inner loop will execute 16 times. 2 solved Why is this code looping 16 times? [duplicate]
Bitmap is System Type…which you can find in System.Drawing namespace… solved c# type Bitmap is have in the system or we can create any kind of type
For a full explanation see this answer from a related question. In short you basically have to implement… – (NSComparisonResult)compare:(Contact *)otherContact; …in your Contact class (order of comparison: self, otherContact). NSComparisonResult has three possible values: NSOrderedAscending, NSOrderedSame and NSOrderedDescending. solved Sorting in Objective C [duplicate]
Varying screen resolutions Varying display sizes On board memory sizes differ greatly and go from minuscule (32mb) to “accepted standard” (16-32 gb) Many different versions “in the wild” with different capabilities Device manufacturers can create skins for the phone and change basic functionality and colors Cell phone carriers can further customize the experience and block … Read more
You never instantiated builder. You need to say builder = …; Also, you can’t have private fields inside a method. Delete the private keyword. 2 solved Java file uri with xml file null pointer exception [closed]
.closest goes up in the DOM tree to try and find the element you make it look for. There is no .travelClass element further up the tree, from the position of your .travelMode element. You need to go up to the TD or the TR first, and then select your way sideways/down to the element … Read more