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How to get all subsets of a set? (powerset)
...f and noticed it was significantly slower. To generate the power set of 16 items 100 times, my measurements were 0.55 versus 15.6.
– Ceasar Bautista
Feb 23 '18 at 7:40
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Difference between SelectedItem, SelectedValue and SelectedValuePath
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Their names can be a bit confusing :). Here's a summary:
The SelectedItem property returns the entire object that your list is bound to. So say you've bound a list to a collection of Category objects (with each Category object having Name and ID properties). eg. ObservableCollection<Catego...
Best Practice for Exception Handling in a Windows Forms Application?
I'm currently in the process of writing my first Windows Forms application. I've read a few C# books now so I've got a relatively good understanding of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got yet is a feel for how to translat...
Avoiding SQL injection without parameters
... incorrect. As secure as your own approach may look (and it looks shaky at best), there's a risk you're overlooking something and do you really want to take that chance when it comes to security?
Use parameters.
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How to make links in a TextView clickable?
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This answer is the best. Works on every Android version and we just need to add that method when the text in set in the TextView. Bonus : it allow us to add customizable links clickable
– Kerwan
Dec 5 '14 ...
How to merge 2 JSON objects from 2 files using jq?
...": {"a": 1}}' '{"A": {"b": 2}}' '{"B": 3}' |\
jq --slurp 'reduce .[] as $item ({}; . * $item)'
{
"A": {
"a": 1,
"b": 2
},
"B": 3
}
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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
...ions.
The following code did NOT work for me:
def change
create_table :item_references do |t|
t.text :item_unique_id
t.belongs_to :referenceable, polymorphic: true
t.timestamps
end
add_index :item_references, [:referenceable_id, :referenceable_type], name: 'idx_item_refs'
end
T...
the item you requested is not available for purchase
...o create in app billing in your developer console and finally activate the item from the console!!! (this is the one that got me after fully following google's tutorial)
Make sure to set VersionCode and VersionName in the manifest to be the same as the version in the developer console (Alpha, Beta o...
How to reset Jenkins security settings from the command line?
...cripts:jenkins-admin</permission>
<permission>hudson.model.Item.Build:jenkins-admin</permission>
<permission>hudson.model.Item.Cancel:jenkins-admin</permission>
<permission>hudson.model.Item.Configure:jenkins-admin</permission>
<permission...
What's the difference between the various methods to get a Context?
... 2.3.3.
I hope my comment have not bored you so far, and wish you all the best. Happy coding ;-)
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