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How do I force Sublime Text to indent two spaces per tab?
...
If you want it for all files, go to Preferences -> Settings - Default/User. But as several comments below indicate, Syntax Specific settings can limit it to just the languages you choose.
To limit this configuration to Ruby files, first open up a Ruby file in the edito...
Get the subdomain from a URL
... the DNS until you find an MX record. Example:
super.duper.domain.co.uk => no MX record, proceed
duper.domain.co.uk => no MX record, proceed
domain.co.uk => MX record found! assume that's the domain
Here is an example in php:
function getDomainWithMX($url) {
//pars...
Iterating through directories with Python
...
From python >= 3.5 onward, you can use **, glob.iglob(path/**, recursive=True) and it seems the most pythonic solution, i.e.:
import glob, os
for filename in glob.iglob('/pardadox-music/**', recursive=True):
if os.path.isfile(file...
how to permit an array with strong parameters
...ermitted scalar values map the key to an empty array:
params.permit(:id => [])
In my app, the category_ids are passed to the create action in an array
"category_ids"=>["", "2"],
Therefore, when declaring strong parameters, I explicitly set category_ids to be an array
params.require(:qu...
Object-orientation in C
...table;
/* base members */
};
void base_dance(struct base *b)
{
b->vtable->dance(b);
}
void base_jump(struct base *b, int how_high)
{
b->vtable->jump(b, how_high);
}
struct derived1
{
struct base super;
/* derived1 members */
};
void derived1_dance(struct derived1 ...
How do I search for an object by its ObjectId in the mongo console?
...ct (case matters) and that the ObjectId is exact.
Documentation is here
> db.test.insert({x: 1})
> db.test.find() // no criteria
{ "_id" : ObjectId("4ecc05e55dd98a436ddcc47c"), "x" : 1 }
> db.test.find({"_id" : ObjectId("4ecc05e55dd98a...
Xcode: failed to get the task for process
... Ok, now I feel dumb ... I mistakenly was choosing Deployment -> iPad and was getting this error. Couldn't figure out why for the life of me, until I realized it, switched it to Development -> iPad and it worked. Duh! :P
– Joel Martinez
Feb 14 ...
Rspec doesn't see my model Class. uninitialized constant error
....0.0.1.
Here's how I resolved this concern.
On your Gemfile, please add -> gem 'rspec-rails', ">= 2.0.0.beta"
Like so,
group :development, :test do
gem 'rspec-rails', ">= 2.0.0.beta"
end
Reason: if the rspec-rails is not added and when you execute the rspec command, it will generate...
How to find NSDocumentDirectory in Swift?
...irectory,
domainMask: NSSearchPathDomainMask,
expandTilde: Bool) -> AnyObject[]!
directory and domainMask are the names, you are using the types, but you should leave them out for functions anyway. They are used primarily in methods.
Also, Swift is strongly typed, so you shouldn't just...
What's an object file in C?
... level flow for this process for code in High Level Language such as C
--> goes through pre-processor
--> to give optimized code, still in C
--> goes through compiler
--> to give assembly code
--> goes through an assembler
--> to give code in machine language which is stored...