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How to map with index in Ruby?
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If you're using ruby 1.8.7 or 1.9, you can use the fact that iterator methods like each_with_index, when called without a block, return an Enumerator object, which you can call Enumerable methods like map on. So you can do:
arr.each_wit...
Python subprocess/Popen with a modified environment
I believe that running an external command with a slightly modified environment is a very common case. That's how I tend to do it:
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Best way to create an empty object in JSON with PHP?
...on could work..
The documentation specifies that (object) null will result in an empty object, some might therefor say that your code is valid and that it's the method to use.
PHP: Objects - Manual
If a value of any other type is converted to an object, a new instance of the stdClass built-in class...
Pass a JavaScript function as parameter
How do I pass a function as a parameter without the function executing in the "parent" function or using eval() ? (Since I've read that it's insecure.)
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Any reason to prefer getClass() over instanceof when generating .equals()?
I'm using Eclipse to generate .equals() and .hashCode() , and there is an option labeled "Use 'instanceof' to compare types". The default is for this option to be unchecked and use .getClass() to compare types. Is there any reason I should prefer .getClass() over instanceof ?
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How to print a groupby object
I want to print the result of grouping with Pandas.
14 Answers
14
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How to create a .NET DateTime from ISO 8601 format
I've found how to turn a DateTime into an ISO 8601 format, but nothing on how to do the reverse in C#.
7 Answers
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How to remove a directory from git repository?
...pository. I'd like to delete one of them. How could I do that without deleting and re-creating entire repository?
15 Answer...
When to use EntityManager.find() vs EntityManager.getReference() with JPA
I have come across a situation (which I think is weird but is possibly quite normal) where I use the EntityManager.getReference(LObj.getClass(), LObj.getId()) to get a database entity and then pass the returned object to be persisted in another table.
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Delete Local Folder in TFS
I'm part of a large project mapped from TFS, within that project there is a folder which I have finished working on. I don't want that folder anymore so I'd like to delete my local copy. The problem is that TFS wants to mirror the change and delete the folder from source control, I don't want to rem...