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No == operator found while comparing structs in C++
...ucts do not have a comparison operator generated by default. You need to write your own:
bool operator==(const MyStruct1& lhs, const MyStruct1& rhs)
{
return /* your comparison code goes here */
}
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Best Practice: Access form elements by HTML id or name attribute?
...lining JS into your HTML is rather inelegant (and often inefficient, since it creates a wrapper function around the code), the fact that you always return false means your form will never submit. So unless either the form isn't meant to be submitted (perhaps it's used entirely by JS code), or unles...
Why do people say that Ruby is slow? [closed]
I like Ruby on Rails and I use it for all my web development projects. A few years ago there was a lot of talk about Rails being a memory hog and about how it didn't scale very well but these suggestions were put to bed by Gregg Pollack here.
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mongoose vs mongodb (nodejs modules/extensions), which better? and why?
I've just arrived to Node.js and see that there are many libs to use with the MongoDB, the most popular seem to be these two: (mongoose and mongodb). Can I get pros and cons of those extensions? Are there better alternatives to these two?
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How do I implement a callback in PHP?
How are callbacks written in PHP?
9 Answers
9
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How to save an activity state using save instance state?
I've been working on the Android SDK platform, and it is a little unclear how to save an application's state. So given this minor re-tooling of the 'Hello, Android' example:
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PHP Session Security
What are some guidelines for maintaining responsible session security with PHP? There's information all over the web and it's about time it all landed in one place!
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Get name of current script in Python
...s is the name of the script that was originally invoked.
If you want to omit the directory part (which might be present), you can use os.path.basename(__file__).
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What are the differences between JSON and JavaScript object? [duplicate]
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First you should know what JSON is:
It is language agnostic data-interchange format.
The syntax of JSON was inspired by the JavaScript Object Literal notation, but there are differences between them.
For example, in JSON all keys must be quoted, while in obj...
How to remove EXIF data without recompressing the JPEG?
...amera info... everything!) from JPEG files, but I don't want to recompress it, as recompressing the JPEG will degrade the quality, as well as usually increasing the file size.
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