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Determine if Android app is being used for the first time
...ting in the Shared Preferences. Same general idea as checking for an empty file, but then you don't have an empty file floating around, not being used to store anything
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Set a default parameter value for a JavaScript function
...2015, default parameters are in the language specification.
function read_file(file, delete_after = false) {
// Code
}
just works.
Reference: Default Parameters - MDN
Default function parameters allow formal parameters to be initialized with default values if no value or undefined is passe...
Rails migration for has_and_belongs_to_many join table
...cept that it doesn't work, at least in Rails 3.2. The generated migration file is blank.
– hoffmanc
Jul 7 '13 at 19:23
7
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How do I use vim registers?
... the Clipboard can be accessed with "*; so the command to copy till end of file becomes "*yG.
– Aditya M P
Mar 14 '13 at 11:35
45
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Conda: Installing / upgrading directly from github
...nify your conda and pip package specifications in a single environment.yml file.
If you wanted to update your root environment with this file, you would need to save this to a file (for example, environment.yml), then run the command: conda env update -f environment.yml.
It's more likely that you ...
Difference between ApiController and Controller in ASP.NET MVC
...ontrollers to your /Controllers/ folder.
Add the following WebApiConfig.cs file to your /App_Config/ folder:
using System.Web.Http;
public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
// Web API routes
config.MapHttpAttributeRoutes(...
sendmail: how to configure sendmail on ubuntu? [closed]
... you should have been prompted to configure sendmail.
For reference, the files that are updated during configuration are located at the following (in case you want to update them manually):
/etc/mail/sendmail.conf
/etc/cron.d/sendmail
/etc/mail/sendmail.mc
You can test sendmail to see if it is ...
Visual Studio loading symbols
...rosoft's, to download missing symbols. This takes three HTTP hits for each file it can't find on every startup - you can sometimes see this in the status bar at the bottom or in e.g. Fiddler. You can see which modules have loaded symbols in Debug, Windows, Modules whilst you're debugging.
Symbols m...
Download data url file
...ag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in.
...
How to use git bisect?
...her the test must be on an external executable in PATH, or in an untracked file in the repo. In many cases this is possible: put the test on a separate file, include necessary test boilerplate with a well crafted test_script + modular test suite, and run it from the separate file while bisecting. Wh...