: All Posts

List of installed gems

Is there a Ruby method I can call to get the list of installed gems I want to parse the output of gem list Is there a different way to do

Read more →

Mocking a function to raise an Exception to test an except block

I have a function foo which calls another function bar If invoking bar raises an HttpError I want to handle it specially if the status code is 404 otherwise

Read more →

MySQL CONCAT returns NULL if any field contain NULL

I have following data in my table devices affiliatename affiliatelocation model ip ostype osversion cs1 inter Dell 1012510325 Linux Fedora cs2 inter Dell

Read more →

MySQL load NULL values from CSV data

I have a file that can contain from 3 to 4 columns of numerical values which are separated by comma Empty fields are defined with the exception when they are

Read more →

Open existing file append a single line

I want to open a text file append a single line to it then close

Read more →

Refused to load the script because it violates the following Content Security Policy directive

When I tried to deploy my app onto devices with Android system above 500 Lollipop I kept getting these kind of error messages 0703 183921621

Read more →

Saving vim macros

Does anyone know how to properly savereuse macros recorded inside of a vim

Read more →

Setting background colour of Android layout element

I am trying to somewhat clone the design of an activity from a set of slides on Android UI design However I am having a problem with a very simple task I have

Read more →

Should enums in C have their own file closed

Closed This question is opinionbased It is not currently accepting answers Want to improve this question Update the question so it can be answered with facts

Read more →