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In Scala, what exactly does 'val a: A = _' (underscore) mean?
...default value of the type A. For example, the default value of an Int is 0 and the default value of a reference type is null.
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How to pass a single object[] to a params object[]
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the way params works seems unnecessary, and suboptimal c# design, given what we’ve become used to in other languages. params could have been made to only accept one form, and a spread like feature could be added that would benefit the entire language, not just t...
Testing if jQueryUI has loaded
I'm trying to debug a website, and I think that jQueryUI may not have loaded properly. How can I test if jQueryUI has loaded?
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Select 50 items from list at random to write to file
So far I have figured out how to import the file, create new files, and randomize the list.
4 Answers
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How to detect current state within directive
I'm using AngularUI's routing and I'd like to do a ng-class="{active: current.state}" but I'm unsure how to exactly detect the current state in a directive like this.
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How to convert ActiveRecord results into an array of hashes
...s.all
tasks_records = tasks_records.as_json
# You can now add new records and return the result as json by calling `to_json`
tasks_records << TaskStoreStatus.last.as_json
tasks_records << { :task_id => 10, :store_name => "Koramanagala", :store_region => "India" }
tasks_records...
Change name of folder when cloning from GitHub?
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I tried the RTFM approach and failed (hence why I'm here), but if you run git clone --help it will give you something like this: git clone [--very-many-options...] <repository> [<directory>], so we see that git clone repo_url my_directory...
Javascript dynamically invoke object method from string
...t be used to index type 'FooClass' anyone else ?
– Anand Rockzz
Jun 27 '19 at 4:37
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Generate a UUID on iOS from Swift
In my iOS Swift app I want to generate random UUID ( GUID ) strings for use as a table key, and this snippet appears to work:
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sqlalchemy unique across multiple columns
...queConstraint or Index constructs explicitly.
As these belong to a Table and not to a mapped Class, one declares those in the table definition, or if using declarative as in the __table_args__:
# version1: table definition
mytable = Table('mytable', meta,
# ...
Column('customer_id', Integ...