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How to check if a value exists in a dictionary (python)
... v in test.values() for x in v]
>>True
What if list of values with string values
test = {'key1': ['value4', 'value5', 'value6'], 'key2': ['value9'], 'key3': ['value6'], 'key5':'value10'}
values = test.values()
"value10" in [x for v in test.values() for x in v] or 'value10' in values
>>...
Markdown: continue numbered list
...
Notice how in Macmade's solution, you can see an extra line of code above the "Code block".
Here are two better solutions:
Indent the code block by an extra 4 spaces (so usually 8, in this nested list example, 12). This will put the code in a <pre> element. On SO,...
Java equivalent to C# extension methods
... allowing you to add methods to classes you do not control e.g., java.lang.String. Demonstration: http://manifold.systems/images/ExtensionMethod.mp4
– Scott
Apr 12 '18 at 21:32
...
Attach parameter to button.addTarget action in Swift
...nal parameters to the buttonClicked method, for example an indexPath or urlString, you can subclass the UIButton:
class SubclassedUIButton: UIButton {
var indexPath: Int?
var urlString: String?
}
Make sure to change the button's class in the identity inspector to subclassedUIButton. You ...
try/catch versus throws Exception
...t to use try-catch.
There is a rule "An overridden method cannot throw any extra exception other than what its parent class is throwing". If there is any extra exception that should be handled using try-catch.
Consider this code snippet.
There is a simple base class
package trycatchvsthrows;
publi...
How do I escape curly braces for display on page when using AngularJS?
... '{person.name}' + '}!' }}" ...>
As you can see, we are building up a string from three smaller strings, in order to keep the curly braces separated.
'Hello {' + '{person.name}' + '}!'
This avoids using ng-non-bindable so we can continue to use ng- attributes elsewhere on the element.
...
Android, How to limit width of TextView (and add three dots at the end of text)?
...he thing that I'm looking for is how to add three dots (...) at the end of string. This one shows the text has continue. This is my XML but there is no dots although it limit my text.
...
Standard alternative to GCC's ##__VA_ARGS__ trick?
...argc, char *argv[])
{
BAR("first test");
BAR("second test: %s", "a string");
return 0;
}
This same trick is used to:
count the number of arguments
expand differently depending on the number of arguments
append to __VA_ARGS__
Explanation
The strategy is to separate __VA_ARGS__ into...
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]
...ld tell in today's presentation. They will be letterboxed or basically the extra 88 points in height would simply be black.
If you only plan to support iOS 6+, then definitely consider using Auto Layout. It removes all fixed layout handling and instead uses constraints to lay things out. Nothing wi...
Removing duplicate values from a PowerShell array
...put:
Apples
Banana
This uses the Property parameter to first Trim() the strings, so extra spaces are removed and then selects only the -Unique values.
More info on Sort-Object:
Get-Help Sort-Object -ShowWindow
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