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Why does the default parameterless constructor go away when you create one with parameters
In C#, C++ and Java, when you create a constructor taking parameters, the default parameterless one goes away. I have always just accepted this fact, but now I've started wondering why.
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Getting image dimensions without reading the entire file
...(jpg, png, ...)? Preferably, I would like to achieve this using only the standard class library (because of hosting restrictions). I know that it should be relatively easy to read the image header and parse it myself, but it seems that something like this should be already there. Also, I’ve verifi...
Code coverage for Jest
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When using Jest 21.2.1, I can see code coverage at the command line and create a coverage directory by passing --coverage to the Jest script. Below are some examples:
I tend to install Jest locally, in which case the command might look like this:
npx jest --coverage
I assume (tho...
How do I paste multi-line bash codes into terminal and run it all at once?
...ode into terminal, but whenever I do, each line gets run as a separate command as soon as it gets pasted.
10 Answers
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How to safely call an async method in C# without await
... PerformAsyncTaskWithoutAwait(this Task task, Action<Task> exceptionHandler) { var dummy = task.ContinueWith(t => exceptionHandler(t), TaskContinuationOptions.OnlyOnFaulted); } } Usage: MyAsyncMethod().PerformAsyncTaskWithoutAwait(t => log.ErrorFormat("An...
facebook: permanent Page Access Token?
...ret}&fb_exchange_token={short_lived_token}
entering in your app's ID and secret and the short-lived token generated in the previous step.
You cannot use the Graph API Explorer. For some reason it gets stuck on this request. I think it's because the response isn't JSON, but a query string. Sin...
Include jQuery in the JavaScript Console
... best better, creating a Bookmark makes it really convenient, let's do it, and a little feedback is great too:
Right click the Bookmarks Bar, and click Add Page
Name it as you like, e.g. Inject jQuery, and use the following line for URL:
javascript:(function(e,s){e.src=s;e.onload=function(){jQuer...
How do you use “git --bare init” repository?
... you would in a normal non-bare repository (e.g. with git add <file> and a subsequent git commit.)
You almost always update a bare repository by pushing to it (using git push) from another repository.
Note that in this case you'll need to first allow people to push to your repository. When i...
Missing XML comment for publicly visible type or member
...(in 'Project properties' go to Project properties -> Build > "Errors and warnings" (section), Suppress Warnings (textbox), add 1591 (comma separated list)). By default it will change Active Configuration, consider to change configuration to All.
Use #pragma warning disable 1591 to disable the ...
Animate visibility modes, GONE and VISIBLE
... the visibility of a linearlayout with other widgets, from GONE to VISIBLE and the opposite.Im using togglebuttons to show and hide. Here's an image to show what i want to do:
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