Parse string into map Golang

2021-6-21 anglehua

I have a string like A=B&C=D&E=F, how to parse it into map in golang? Here is example on Java, but I don't understand this split part String text = "A=B&C=D&E=F"; Map<String, String> map = new LinkedHashMap<String, String>(); for(String keyValue : text.split(" *& *"))...

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ContextCompat.getcolor() going to null object reference

2021-6-21 anglehua

I'm getting error when I set color to SlidingTabLayout object. Here is my mainActivity, first I found that getResource.getColor is deprecated. So I used contextCompat.getColor. But now its going to null. public class MainActivity extends AppCompatActivity { private Toolbar toolbar; private ...

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React createElement vs cloneElement

2021-6-21 anglehua

Can anyone let me know if using cloneElement (on exist element instance) or createElement (on react Element class) which one is better in term of performance? Sometimes cloning something is faster than create new instance. Please let me know. Thanks Using cloneElement will be usually be faster beca...

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Checking when a date has passed - Swift

2021-6-21 anglehua

Well, the title pretty much says it all. What I am trying to do is check when a date has passed. So, for example let us say that a user is using my app and then they go to bed and check my app in the morning. When my app opens up I need to check if the day has changed at all. Also I don't really nee...

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catch api 404 response with Angular2 http

2021-6-21 anglehua

I have api which returns 400 or 404 errors if failed. When I run the http.get method, it does not catch the error on subscribe and throws error. Http.get(`api/path/here`).map(res => res.json()).subscribe( data => console.log(data), error => console.log(error) ...

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Register all the services at once using Default DI Container from ASP.NET 5 similar to Autofac

2021-6-21 anglehua

With ASP.NET 5, there's already a DI shipped as default and it looks interesting. I have been using Autofac with MVC 5 which has the option to register all the assembly at once. Here is a sample code that register all the classes that ends with "Service" in Autofac. // Autofac Configuration for API...

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Why does Spark save Map phase output to local disk?

2021-6-21 anglehua

I'm trying to understand spark shuffle process deeply. When i start reading i came across the following point. Spark writes the Map task(ShuffleMapTask) output directly to disk on completion. I would like to understand the following w.r.t to Hadoop MapReduce. If both Map-Reduce and Spark writes t...

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How do I clear states or empty array on click in react 0.14 ES6?

2021-6-21 anglehua

I am rendering an array in a modal. Once the modal closes I need to empty the array.The following code updates the array but not clear array on click of closeModal. constructor(props,context) { super(props,context); this.state = { myArray: [] }; } pushData(newVar) { this.setSt...

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How do I do a basic implementation of Delegation in Swift?

2021-6-21 anglehua

I am trying to get my head around delegation and am stripping it down to a basic implementation. I've came up with this, but the delegate function never gets called. Could anyone shed some light? protocol MyDelegate{ func delegatedFunction (a:String) } class DelegatorClass { var delegate: M...

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Angular2 + ngrx/store for handling failure HTTP requests

2021-6-21 anglehua

I want to have a simple code path for creating and dispatching HTTP actions. What I would like to do is something like: this.http.request(...) .map((res: Response) => res.json()) .catch((err: any) => err.json()) .map((payload: any) => { type: 'SUCCESS', payload }) .catch((payload: a...

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How to Ignore localhost on Azure application insights

2021-6-21 anglehua

I started hosting my first production application recently. I went ahead and activated application insights, which I think have a lot of value. However, I'm getting stats which come from the developer side, for example logs are recording entries from localhost:xxxx. I'm sure there is a way to turn t...

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Retrieving identity of most recent insert in Oracle DB 12c

2021-6-21 anglehua

I'd like to have returned to me (via cx_oracle in python) the value of the Identity that's created for a row that I'm inserting. I think I can figure out the python bit on my own, if someone could please state how to modify my SQL statement to get the ID of the newly-created row. I have a table tha...

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android studio disable optimising imports automatically

2021-6-21 anglehua

I had a few unused imports in Java file which were not used. Android Studio suggested me to "Optimize unused imports automatically on the fly" I clicked on it. Now all the unused imports are removed automatically. Is there a way to revert this settings? I am new to android so please forgive me if i...

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Is it undefined behavior to pass-by-reference uninitialized variable?

2021-6-21 anglehua

I have the following code: #include <iostream> void f(int &x) { x = 5; } int main() { int x; f(x); std::cout << x << std::endl; return 0; } Does this code invoke undefined behavior in C++? g++ compiles it without any warnings and the code prints out 5 (as...

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How to update file in google drive v3 PHP

2021-6-21 anglehua

I cant seem to update file in google drive with the following code, everything goes fine but file remains untouched? I am working with v3 api. function updateFile($service, $fileId, $data) { try { $emptyFile = new Google_Service_Drive_DriveFile(); $file = $service-&g...

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Error: ':' is not a valid resource name character

2021-6-21 anglehua

I have imported my eclipse project to android studio.I googled but not getting right answer. These errors are occurred- D:\***\app\src\main\res\values\strings.xml Error:Error: ':' is not a valid resource name character :app:mergeDebugResources FAILED Error:Execution failed for task ':app:mergeDebugR...

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Converting numpy arrays of arrays into one whole numpy array

2021-6-21 anglehua

I want to turn my array of array into just a single array. From something like : array([ array([[0, 0, 0, ..., 1, 0, 0], [0, 1, 0, ..., 0, 0, 0], [0, 0, 0, ..., 2, 0, 0], ..., array([[0, 0, 0, ..., 0, 0, 0], [0, 0, 0, ..., 0, 0, 0], [0, 0, 0, ..., 8, 0, 2...

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jquery - remove class based on condition

2021-6-21 anglehua

I am polling a json response for every 1 min and based on the response I am adding or removing overlay on my page. My response is most of the time positive , in this case , i should remove the overlay class. In the below code, else part is executing every time and remove class and hide functions are...

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Android item size in layer-list

2021-6-21 anglehua

I need to set size for item in layer-list. For using as windowBackground in launch activity. I wrote this XML file and Android Studio displays it correctly. But in application the logo always full screen. How to make it? <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http...

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Uploading multiple images with other parameters in Swift

2021-6-21 anglehua

Right now I've been uploading only one image to a server on a server side script through the code given below. Now I have an array of UIImage, I want to know how can I use UIImageJPEGRepresentation(myImageView.image!, 0.1) to post all the images in a UIImageView array? func uploadImage() { let p...

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