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Get the client's IP address in socket.io

...it logs on git hub to figure this one out, but the following code does actually work for me now: var io = require('socket.io').listen(server); io.sockets.on('connection', function (socket) { var address = socket.handshake.address; console.log('New connection from ' + address.address + ':' + ad...
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nodeJs callbacks simple example

can any one give me a a simple example of nodeJs callbacks, I have already searched for the same on many websites but not able to understand it properly, Please give me a simple example. ...
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Collect successive pairs from a stream

...eamEx library which extends standard streams provides a pairMap method for all stream types. For primitive streams it does not change the stream type, but can be used to make some calculations. Most common usage is to calculate differences: int[] pairwiseDiffs = IntStreamEx.of(input).pairMap((a, b)...
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Android get free size of internal/external memory

... size of free memory on internal/external storage of my device programmatically. I'm using this piece of code : 12 Answers ...
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Why do assignment statements return a value?

This is allowed: 14 Answers 14 ...
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What does the function then() mean in JavaScript?

... The traditional way to deal with asynchronous calls in JavaScript has been with callbacks. Say we had to make three calls to the server, one after the other, to set up our application. With callbacks, the code might look something like the following (assuming a xhrGET fun...
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InputStream from a URL

... Calling this method in UI thread in Android will raise an exception. Do it in a background thread. Use Bolts-Android – Behrouz.M Mar 6 '19 at 10:16 ...
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How to download image using requests

...ream 1 byte at a time. See the documentation python-requests.org/en/latest/api/…. – CadentOrange Oct 17 '13 at 15:53 10 ...
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How set background drawable programmatically in Android

... If you are using the support v4 library, the following will be enough for all versions. ContextCompat.getDrawable(context, R.drawable.ready) You will need to add the following in your app build.gradle compile 'com.android.support:support-v4:23.0.0' # or any version above Or using ResourceComp...
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Entity Framework Code First - Advantages and disadvantages of Fluent Api vs Data Annotations [closed

...onf.MapKey("MyForeignKeyID")) Fine granular tuning of relationships, especially in all cases where only one side of an association is exposed in the object model: .WithMany(...), WithOptional(...), WithRequiredDependent(...), WithRequiredPrincipal(...) Specification of inheritance mapping between o...