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Is there a short contains function for lists?
...m not in list:
# do something
It's work fine for lists, tuples, sets and dicts (check keys).
Note that this is an O(n) operation in lists and tuples, but an O(1) operation in sets and dicts.
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How to escape indicator characters (i.e. : or - ) in YAML
...ey to which I wish to assign a URL. The problem is that YAML interprets : and - characters as either creating mappings or lists, so it has a problem with the line
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How to unzip files programmatically in Android?
... need a small code snippet which unzips a few files from a given .zip file and gives the separate files according to the format they were in the zipped file. Please post your knowledge and help me out.
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Foreach loop, determine which is the last iteration of the loop
I have a foreach loop and need to execute some logic when the last item is chosen from the List , e.g.:
26 Answers
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Binding arrow keys in JS/jQuery
How do I go about binding a function to left and right arrow keys in Javascript and/or jQuery? I looked at the js-hotkey plugin for jQuery (wraps the built-in bind function to add an argument to recognize specific keys), but it doesn't seem to support arrow keys.
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MSSQL Error 'The underlying provider failed on Open'
I was using an .mdf for connecting to a database and entityClient . Now I want to change the connection string so that there will be no .mdf file.
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ExpandableListView - hide indicator for groups with no children
In an ExpandableListView , is there a way to hide the group indicator for groups with no children?
13 Answers
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PHPUnit assert that an exception was thrown?
...s->setExpectedException(InvalidArgumentException::class);
//...and then add your test code that generates the exception
exampleMethod($anInvalidArgument);
}
}
expectException() PHPUnit documentation
PHPUnit author article provides detailed explanation on testing exception...
How do I get the current date in JavaScript?
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Use new Date() to generate a new Date object containing the current date and time.
var today = new Date();
var dd = String(today.getDate()).padStart(2, '0');
var mm = String(today.getMonth() + 1).padStart(2, '0'); //January is 0!
var yyyy = today.getFullYear();
today = mm + '/' + dd + '...
ASP.NET MVC Conditional validation
...ional validation rules in MVC3; have your model inherit IValidatableObject and implement the Validate method:
public class Person : IValidatableObject
{
public string Name { get; set; }
public bool IsSenior { get; set; }
public Senior Senior { get; set; }
public IEnumerable<Vali...