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Perform .join on value in array of objects
... array of strings, I can use the .join() method to get a single string, with each element separated by commas, like so:
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The 'json' native gem requires installed build tools
...running them and before the last attempt to install the gem that wants devkit present?
Also, be sure you are using the right devkit installer for your version of Ruby. The documentation at devkit wiki page has a requirements note saying:
For RubyInstaller versions 1.8.7, 1.9.2, and 1.9.3 use ...
How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
In PostgreSQL I have a table with a varchar column. The data is supposed to be integers and I need it in integer type in a query. Some values are empty strings.
The following:
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How can I search Git branches for a file or directory?
In Git, how could I search for a file or directory by path across a number of branches?
6 Answers
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What data type to use for hashed password field and what length?
I'm not sure how password hashing works (will be implementing it later), but need to create database schema now.
10 Answers...
The type or namespace name 'DbContext' could not be found [closed]
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I had the same issue. Turns out, you need the EntityFramework.dll reference (and not System.Data.Entity).
I just pulled it from the MvcMusicStore application which you can download from: http://mvcmusicstore.codeplex.com/
It's also a useful example of how to use entity fr...
Is it possible to perform a 'grep search' in all the branches of a Git project?
Is it possible to run git grep inside all the branches of a Git control sourced project? Or is there another command to run?
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How to create a Menubar application for Mac
EDIT: This is a nice ready-made menubar application here ( github source ) by this answer .
6 Answers
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Bash function to find newest file matching pattern
... has a parameter -t to sort by time. You can then grab the first (newest) with head -1.
ls -t b2* | head -1
But beware: Why you shouldn't parse the output of ls
My personal opinion: parsing ls is only dangerous when the filenames can contain funny characters like spaces or newlines. If you can g...
How does this program work?
It displays a 0 !! How is that possible? What is the reasoning?
13 Answers
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