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How to delete items from a dictionary while iterating over it?
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EDIT:
This answer will not work for Python3 and will give a RuntimeError.
RuntimeError: dictionary changed size during iteration.
This happens because mydict.keys() returns an iterator not a list.
As pointed out in comments simply convert mydict.k...
How to override to_json in Rails?
This issue was not properly explored. The real issue lies within render :json .
4 Answers
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In Go's http package, how do I get the query string on a POST request?
...ap[string][]string of the QueryString parameters.
If what you're looking for is the POST data as submitted by an HTML form, then this is (usually) a key-value pair in the request body. You're correct in your answer that you can call ParseForm() and then use req.Form field to get the map of key-valu...
Difference between attr_accessor and attr_accessible
In Rails, what is the difference between attr_accessor and attr_accessible ? From my understanding, using attr_accessor is used to create getter and setter methods for that variable, so that we can access the variable like Object.variable or Object.variable = some_value .
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Advantages to Using Private Static Methods
...lication, that don't require the use of any instance fields, are there performance or memory advantages to declaring the method as static?
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@Nullable annotation usage
...the method, you should also accept null values.
It also serves as a hint for code analyzers like FindBugs. For example, if such a method dereferences its argument without checking for null first, FindBugs will emit a warning.
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How do I write the 'cd' command in a makefile?
For example, I have something like this in my makefile:
6 Answers
6
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XML Document to String
...at's the simplest way to get the String representation of a XML Document ( org.w3c.dom.Document )? That is all nodes will be on a single line.
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Tuning nginx worker_process to obtain 100k hits per min
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Config file:
worker_processes 4; # 2 * Number of CPUs
events {
worker_connections 19000; # It's the key to high performance - have a lot of connections available
}
worker_rlimit_nofile 20000; # Each connection needs a filehan...
How do I check if I'm running on Windows in Python? [duplicate]
I found the platform module but it says it returns 'Windows' and it's returning 'Microsoft' on my machine. I notice in another thread here on stackoverflow it returns 'Vista' sometimes.
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