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How to check whether a string is Base64 encoded or not
I want to decode a Base64 encoded string, then store it in my database. If the input is not Base64 encoded, I need to throw an error.
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Finding a substring within a list in Python [duplicate]
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What is lexical scope?
...ble all variables in interface section of aUnit
interface
var aGlobal: string; // global in the scope of all units that use Main;
type
TmyClass = class
strict private aPrivateVar: Integer; // only known by objects of this class type
// lexical: wi...
Is there a way to chain multiple value converters in XAML?
...l:ValueConverterGroup x:Key="statusForegroundGroup">
<local:IntegerStringToProcessingStateConverter />
<local:ProcessingStateToColorConverter />
<local:ColorToSolidColorBrushConverter />
</local:ValueConverterGroup>
Great stuff. Thanks, Josh. :)
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How to detect if a property exists on an ExpandoObject?
...aled class ExpandoObject : IDynamicMetaObjectProvider,
IDictionary<string, Object>, ICollection<KeyValuePair<string, Object>>,
IEnumerable<KeyValuePair<string, Object>>, IEnumerable, INotifyPropertyChanged
You can use this to see if a member is defined:
var...
Python Regex - How to Get Positions and Values of Matches
...es using the re module? For example given the pattern r'[a-z]' and the string 'a1b2c3d4' I'd want to get the positions where it finds each letter. Ideally, I'd like to get the text of the match back too.
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Which characters are valid in CSS class names/selectors?
...lready separate classes from each other.
So, if you need to turn a random string into a CSS class name: take care of NUL and space, and escape (accordingly for CSS or HTML). Done.
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Symfony 2: How do I check if a user is not logged in inside a template?
...ble can be a UserInterface object, any other object which implements a __toString() method or even a regular string.. I don't remember where I read that app.user returns "anon." string unfortunately and under what circumstances.
– pzaj
Apr 19 '17 at 14:37
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Build and Version Numbering for Java Projects (ant, cvs, hudson)
...t;
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</manifest>
</target>
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Your java code
String ver = MyClass.class.getPackage().getImplementationVersion();
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Finding the index of an item in a list
...the index-based methods for me, since I'm looking to gather the indices of strings using 'startswith" , and I need to gather multiple occurrences. Or is there a way to use index with "startswith" that I couldn't figure out
– Tupelo Thistlehead
Oct 26 '17 at 19:...