Questions

Invoke-customs are only supported starting with android 0 --min-api 26

before i'm use build version gradle 26 but after change buildtoolsversion to 27 like as this image I am using android studio 4.2.2 recently i update all my dependency and ``` sourceCompatibility Java...

iOS app with framework crashed on device, dyld: Library not loaded, Xcode 6 Beta

This crash has been a blocking issue I used the following steps to reproduce the issue: - - - - - - - The app immediate crashed upon launching, here is console log: ``` dyld: Library not loaded: @...

Python exit commands - why so many and when should each be used?

It seems that python supports many different commands to stop script execution.The choices I've found are: `quit()`, `exit()`, `sys.exit()`, `os._exit()` Have I missed any? What's the difference be...

9 Jun at 17:4

How to completely uninstall Android Studio on Mac?

I recently downloaded Android Studio on my Macbook Pro and I messed up with it every time I open it. It gives me plugin errors and several other errors. I need to uninstall it completely from my mac. ...

22 Oct at 14:42

For loop for HTMLCollection elements

I'm trying to set get id of all elements in an `HTMLCollectionOf`. I wrote the following code: ``` var list = document.getElementsByClassName("events"); console.log(list[0].id); for (key in list) { ...

8 Jan at 03:1

Scroll Automatically to the Bottom of the Page

I have a list of questions. When I click on the first question, it should automatically take me to a specific element at the bottom of the page. How can I do this with jQuery?

LEFT OUTER JOIN in LINQ

How to perform left outer join in C# LINQ to objects without using `join-on-equals-into` clauses? Is there any way to do that with `where` clause? Correct problem: For inner join is easy and I have a ...

3 Jul at 13:31

How to debug in Django, the good way?

So, I started learning to code in [Python](http://en.wikipedia.org/wiki/Python_%28programming_language%29) and later [Django](http://en.wikipedia.org/wiki/Django_%28web_framework%29). The first times ...

28 Feb at 10:40

java.util.Date to XMLGregorianCalendar

Isn't there a convenient way of getting from a java.util.Date to a XMLGregorianCalendar?

25 May at 14:25

Why are exclamation marks used in Ruby methods?

In Ruby some methods have a question mark (`?`) that ask a question like `include?` that ask if the object in question is included, this then returns a true/false. But why do some methods have exclam...

What is a "static" function in C?

The question was about plain [c](/questions/tagged/c) functions, not [c++](/questions/tagged/c%2b%2b) `static` methods, as clarified in comments. I understand what a `static` variable is, but what is...

3 Nov at 22:48

Attempted import error: 'Switch' is not exported from 'react-router-dom'

I don't know why I am getting this error and I can't find an answer for it anywhere. I have uninstalled the `react-router-dom` package and reinstalled it, but it continues to tell me that the switch m...

3 Feb at 22:12

Combination of async function + await + setTimeout

I am trying to use the new async features and I hope solving my problem will help others in the future. This is my code which is working: ``` async function asyncGenerator() { // other code w...

Word-wrap in an HTML table

I've been using `word-wrap: break-word` to wrap text in `div`s and `span`s. However, it doesn't seem to work in table cells. I have a table set to `width:100%`, with one row and two columns. Text in c...

20 Jan at 16:58

How to use concerns in Rails 4

The default Rails 4 project generator now creates the directory "concerns" under controllers and models. I have found some explanations about how to use routing concerns, but nothing about controllers...

14 Dec at 10:4

How do I split a string into a list of characters?

How do I split a string into a list of characters? [str.split](https://docs.python.org/3/library/stdtypes.html#str.split) does not work. ``` "foobar" → ['f', 'o', 'o', 'b', 'a', 'r'] ```

3 Jul at 17:29

Sort array of objects by one property

How can I sort this array of objects by one of its fields, like `name` or `count`? ``` Array ( [0] => stdClass Object ( [ID] => 1 [name] => Mary Jane [c...

ActiveMQ or RabbitMQ or ZeroMQ or

We'd be interested to hear any experiences with the pros and cons of ActiveMQ vs RabbitMQ vs ZeroMQ. Information about any other interesting message queues is also welcome.

What does the NS prefix mean?

Many classes in Cocoa/Cocoa Touch have the NS prefix. What does it mean?

How to dynamically change a web page's title?

I have a webpage that implements a set of tabs each showing different content. The tab clicks do not refresh the page but hide/unhide contents at the client side. Now there is a requirement to change...

9 Aug at 13:47

How can I return NULL from a generic method in C#?

I have a generic method with this (dummy) code (yes I'm aware IList has predicates, but my code is not using IList but some other collection, anyway this is irrelevant for the question...) ``` static ...

21 Jun at 09:5

Is there a command to refresh environment variables from the command prompt in Windows?

If I modify or add an environment variable I have to restart the command prompt. Is there a command I could execute that would do this without restarting CMD?

25 Oct at 14:29

Create instance of generic type in Java?

Is it possible to create an instance of a generic type in Java? I'm thinking based on what I've seen that the answer is `no` (), but I'd be interested if anyone can see something I'm missing: ``` cla...

6 Apr at 11:29

access key and value of object using *ngFor

I am a bit confused about how to get the `key` and `value` of an object in angular2 while using `*ngFor` for iterating over the object. I know in angular 1.x there is a syntax like ``` ng-repeat="(k...

19 Jun at 14:43

Difference between partition key, composite key and clustering key in Cassandra?

I have been reading articles around the net to understand the differences between the following `key` types. But it just seems hard for me to grasp. Examples will definitely help make understanding b...

13 Sep at 16:6