Questions

Command CompileSwift failed with a nonzero exit code in Xcode 10

After updating to the latest version of Xcode at the moment (version 10.0) the project is unable to build because it found some errors regarding some "Command CompileSwift failed with a nonzero exit c...

17 Jun at 08:54

What does model.train() do in PyTorch?

Does it call `forward()` in `nn.Module`? I thought when we call the model, `forward` method is being used. Why do we need to specify train()?

12 Jul at 16:50

Docker error: invalid reference format: repository name must be lowercase

Ran into this Docker error with one of my projects: `invalid reference format: repository name must be lowercase` What are the various causes for this generic message? I already figured it out afte...

30 Jan at 13:29

How can I run specific migration in laravel

I create on address table migration but one migration is already in the database it gives following error : > Base table or view already exists: 1050 Table 'notification' already exists So, Can I ru...

10 Jan at 10:46

Is this a good way to clone an object in ES6?

Googling for "javascript clone object" brings some really weird results, some of them are hopelessly outdated and some are just too complex, isn't it as easy as just: ``` let clone = {...original}; `...

Fetch: reject promise and catch the error if status is not OK?

Here's what I have going: ``` import 'whatwg-fetch'; function fetchVehicle(id) { return dispatch => { return dispatch({ type: 'FETCH_VEHICLE', payload: fetch(`htt...

7 Jul at 01:16

Define global variable with webpack

Is it possible to define a global variable with webpack to result something like this: ``` var myvar = {}; ``` All of the examples I saw were using external file `require("imports?$=jquery!./file....

IntelliJ cannot find any declarations

I completely uninstalled IntelliJ and have now reinstalled and imported my project. I imported using gradle and can see all of the files in my project present. However, when I open a file I can't find...

Passive Link in Angular 2 - <a href=""> equivalent

In Angular 1.x I can do the following to create a link which does basically nothing: ``` <a href="">My Link</a> ``` But the same tag navigates to the app base in Angular 2. What is the equivalent o...

How to select the first row of each group?

I have a DataFrame generated as follow: ``` df.groupBy($"Hour", $"Category") .agg(sum($"value") as "TotalValue") .sort($"Hour".asc, $"TotalValue".desc)) ``` The results look like: ``` +----+--...

How to show PIL Image in ipython notebook

This is my code ``` from PIL import Image pil_im = Image.open('data/empire.jpg') ``` I would like to do some image manipulation on it, and then show it on screen. I am having problem with showing P...

Android Studio : How to uninstall APK (or execute adb command) automatically before Run or Debug?

Now I need to uninstall the App every time before `Run\Debug` it in Android Studio. Because I need to re-create the database before I run \debug the app. I know I can run the command ``` adb uninsta...

15 Jul at 19:58

Mongoose, Select a specific field with find

I'm trying to select only a specific field with ``` exports.someValue = function(req, res, next) { //query with mongoose var query = dbSchemas.SomeValue.find({}).select('name'); query.ex...

23 Jun at 22:26

Check empty string in Swift?

In Objective C, one could do the following to check for strings: ``` if ([myString isEqualToString:@""]) { NSLog(@"myString IS empty!"); } else { NSLog(@"myString IS NOT empty, it is: %@", my...

2 Sep at 01:4

lodash multi-column sortBy

There's a nifty method to sort an array of objects based on several properties: ``` var data = _.sortBy(array_of_objects, ['type', 'name']); ``` However that is only for ascending sorting. Is there...

20 Jun at 12:32

Merge git repo into branch of another repo

Given repo Foo and repo Bar. I want to merge Bar with Foo, only into a separate branch, called `baz`. `git switch -c baz` <= put the Bar repo here.

9 Mar at 09:25

How to save an image to localStorage and display it on the next page?

So, basically, I need to upload a single image, save it to localStorage, then display it on the next page. Currently, I have my HTML file upload: ``` <input type='file' id="uploadBannerImage" onchan...

24 Aug at 01:18

AngularJS does not send hidden field value

For a specific use case I have to submit a single form the "old way". Means, I use a form with action="". The response is streamed, so I am not reloading the page. I am completely aware that a typical...

15 Jan at 04:20

Test method is inconclusive: Test wasn't run. Error?

I have a test class and below I have posted a sample test from the test class ``` namespace AdminPortal.Tests.Controller_Test.Customer { [TestClass] public class BusinessUnitControllerTests ...

Restore LogCat window within Android Studio

I have recently started to use Android Studio v0.1.1, And i can't seem to find LogCat... Is it gone? Or if not, how can I enable it? If it is gone, is there any way to enable something similar to log...

Reloading the page gives wrong GET request with AngularJS HTML5 mode

I want to enable HTML5 mode for my app. I have put the following code for the configuration, as shown [here](http://docs.angularjs.org/guide/dev_guide.services.$location): ``` return app.config(['$ro...

17 Aug at 01:38

C# HttpClient 4.5 multipart/form-data upload

Does anyone know how to use the `HttpClient` in .Net 4.5 with `multipart/form-data` upload? I couldn't find any examples on the internet.

Unable to Connect to GitHub.com For Cloning

I am trying to clone the [angular-phonecat git repository](https://github.com/angular/angular-phonecat), but I am getting the following message when I enter the command in my Git Bash: ``` $ git clon...

14 Sep at 05:58

TypeError: module.__init__() takes at most 2 arguments (3 given)

I have defined a class in a file named `Object.py`. When I try to inherit from this class in another file, calling the constructor throws an exception: ``` TypeError: module.__init__() takes at most ...

How to get awaitable Thread.Sleep?

I'm writing a network-bound application based on await/sleep paradigm. Sometimes, connection errors happen, and in my experience it pays to wait for some time and then retry operation again. The pr...

6 Jun at 15:37