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Is the primary key automatically indexed in MySQL?
...implicit when defining the primary key? Is the answer the same for MyISAM and InnoDB?
9 Answers
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string sanitizer for filename
...name
Put the string in lower case
Remove foreign accents such as Éàû by convert it into html entities and then remove the code and keep the letter.
Replace Spaces with dashes
Encode special chars that could pass the previous steps and enter in conflict filename on server. ex. "中文百强网"
Re...
What is the difference between dynamic and static polymorphism in Java?
...ne provide a simple example that explains the difference between Dynamic and Static polymorphism in Java?
14 Answers
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How do we count rows using older versions of Hibernate (~2009)?
... answered Sep 3 '09 at 10:34
SalandurSalandur
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For-each over an array in JavaScript
...tly (ES2015+)
See #4.
Create a true array
Other times, you may want to convert an array-like object into a true array. Doing that is surprisingly easy:
Use the slice method of arrays
We can use the slice method of arrays, which like the other methods mentioned above is "intentionally generic"...
NodeJS: Saving a base64-encoded image to disk
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I think you are converting the data a bit more than you need to. Once you create the buffer with the proper encoding, you just need to write the buffer to the file.
var base64Data = req.rawBody.replace(/^data:image\/png;base64,/, "");
requ...
`levels
...The code is simply setting up a sort of pipeline:
Start with dat$product
Convert it to a factor
Change the levels
Store that in res
Personally, I think that line of code is beautiful ;)
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How can I iterate over an enum?
I just noticed that you can not use standard math operators on an enum such as ++ or +=
21 Answers
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How to choose the id generation strategy when using JPA and Hibernate
I was going through Id generation section of the Hibernate reference guide and "java persistence with Hibernate"
4 Answers
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What does void mean in C, C++, and C#?
Looking to get the fundamentals on where the term " void " comes from, and why it is called void. The intention of the question is to assist someone who has no C experience, and is suddenly looking at a C-based codebase.
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