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Best practices for overriding isEqual: and hash
How do you properly override isEqual: in Objective-C? The "catch" seems to be that if two objects are equal (as determined by the isEqual: method), they must have the same hash value.
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How do I manage MongoDB connections in a Node.js web application?
I'm using the node-mongodb-native driver with MongoDB to write a website.
11 Answers
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Equivalent of typedef in C#
Is there a typedef equivalent in C#, or someway to get some sort of similar behaviour? I've done some googling, but everywhere I look seems to be negative. Currently I have a situation similar to the following:
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PHP Multidimensional Array Searching (Find key by specific value)
I have this multidimensional array. I need to search it and return only the key that matches the value of the "slug". I know there are other threads about searching multidimensional arrays, but I'm not really understanding enough to apply to my situation. Thanks very much for any help!
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What is the Java ?: operator called and what does it do?
I have been working with Java a couple of years, but up until recently I haven't run across this construct:
16 Answers
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Database sharding vs partitioning
I have been reading about scalable architectures recently. In that context, two words that keep on showing up with regards to databases are sharding and partitioning . I looked up descriptions but still ended up confused.
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How do I update the GUI from another thread?
Which is the simplest way to update a Label from another Thread ?
47 Answers
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How to convert JSON to XML or XML to JSON?
I started to use Json.NET to convert a string in JSON format to object or viceversa. I am not sure in the Json.NET framework, is it possible to convert a string in JSON to XML format and viceversa?
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Rotating a two-dimensional array in Python
In a program I'm writing the need to rotate a two-dimensional array came up. Searching for the optimal solution I found this impressive one-liner that does the job:
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Encode html entities in javascript
I am working in a CMS which allows users to enter content. The problem is that when they add symbols ® , it may not display well in all browsers. I would like to set up a list of symbols that must be searched for, and then converted to the corresponding html entity. For example
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