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What is a None value?
... here
oops!
So the book is a little misleading mostly in its use of the word reset – assigning None to a name is a signal to a programmer that that value isn't being used or that the function should behave in some default way, but to reset a value to its original, undefined state you must use ...
Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition
...em to be able to recognize Coca-Cola 'cans' (note that I'm stressing the word 'cans', you'll see why in a minute). You can see a sample below, with the can recognized in the green rectangle with scale and rotation.
...
What is the purpose of AsQueryable()?
...ticular, the article states,
This offers an excellent benefits in real word scenarios where you have certain methods on an entity that return an IQueryable of T and some methods return List. But then you have business rule filter that needs to be applied on all the collection regardless if the c...
Does MySQL ignore null values on unique constraints?
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@Pijusn I got you. You're right, I have removed the wording suggesting otherwise. I mis-read the question. But I believe the answer still may be useful for users that stumble upon this question as I did while trying to find a way to have a unique "nothing" value, but are mista...
How do you maintain development code and production code? [closed]
... release) is implemented in the Git repo itself, with the gitworkflow (one word, illustrated here).
See more at rocketraman/gitworkflow. The history of doing this vs Trunk-Based-Development is noted in the comments and discussions of this article by Adam Dymitruk.
(source: Gitworkflow: A Task-O...
How to print color in console using System.out.println?
...0.
It uses the ANSI codes mentioned by WhiteFang, but abstracts them using words instead of codes which is much more intuitive. Recently I added support for 8 and 24 bit colors ????
Choose your format, colorize it, and print it:
System.out.println(colorize("Green text on blue", GREEN_TEXT(), BLUE_BA...
Why does the use of 'new' cause memory leaks?
...:
obj a;
obj b;
They won't occupy the same location in memory. In other words, &a != &b
Assigning the value of one to the other won't change their location, but it will change their contents:
obj a;
obj b = a;
//a == b, but &a != &b
Intuitively, pointer "objects" work the same...
What is Java Servlet?
...the answer is; In Java world at least It is guided (note I did not use the word controlled) by specifications. For example Servlet specifications (See resource 2) dictates what a servlet must be able to do. So if you can write an implementation for the specification, congratulations you just created...
A html space is showing as %2520 instead of %20
...
Try this?
encodeURIComponent('space word').replace(/%20/g,'+')
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How does password salt help against a rainbow table attack?
I'm having some trouble understanding the purpose of a salt to a password. It's my understanding that the primary use is to hamper a rainbow table attack. However, the methods I've seen to implement this don't seem to really make the problem harder.
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