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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
The following shows that "0" is false in Javascript:
12 Answers
12
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How to determine an object's class?
... I have an object of type B or C , how can I determine of which type it is an instance?
11 Answers
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Difference Between One-to-Many, Many-to-One and Many-to-Many?
Ok so this is probably a trivial question but I'm having trouble visualizing and understanding the differences and when to use each. I'm also a little unclear as to how concepts like uni-directional and bi-directional mappings affect the one-to-many/many-to-many relationships. I'm using Hibernate ri...
What does the function then() mean in JavaScript?
...api/' + user.id + '/items', function(items) {
// Actually display the items here
});
});
});
In this example, we first fetch the server configuration. Then based on that, we fetch
information about the current user, and then finally get the list of items for...
What is the difference between sql and mysql [closed]
I am new to databases and I was wondering: What is the difference between SQL and MySQL ?
5 Answers
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Git branching: master vs. origin/master vs. remotes/origin/master
...all the branches git knows about). It will probably look something like this:
* master
remotes/origin/HEAD -> origin/master
remotes/origin/master
Here, master is a branch in the local repository. remotes/origin/master is a branch named master on the remote named origin. You can refer to...
How to check if a number is a power of 2
Today I needed a simple algorithm for checking if a number is a power of 2.
25 Answers
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What is private bytes, virtual bytes, working set?
...
The short answer to this question is that none of these values are a reliable indicator of how much memory an executable is actually using, and none of them are really appropriate for debugging a memory leak.
Private Bytes refer to the amount of ...
XPath contains(text(),'some string') doesn't work when used with node with more than one Text subnod
...ren.
Your xpath expression was
//*[contains(text(),'ABC')]
To break this down,
* is a selector that matches any element (i.e. tag) -- it returns a node-set.
The [] are a conditional that operates on each individual node in that node set. It matches if any of the individual nodes it operates ...
What is the difference between IQueryable and IEnumerable?
What is the difference between IQueryable<T> and IEnumerable<T> ?
13 Answers
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