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What and where are the stack and heap?
Programming language books explain that value types are created on the stack , and reference types are created on the heap , without explaining what these two things are. I haven't read a clear explanation of this. I understand what a stack is. But,
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How can I link to a specific glibc version?
When I compile something on my Ubuntu Lucid 10.04 PC it gets linked against glibc. Lucid uses 2.11 of glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11...
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Can you get DB username, pw, database name in Rails?
I'm writing a rake task that does some DB work outside of Rails/ActiveRecord.
5 Answers
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How can I get the sha1 hash of a string in node.js?
I'm trying to create a websocket server written in node.js
5 Answers
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Maven command to list lifecycle phases along with bound goals?
I'm just learning Maven, and so this might be obvious, but I can't find an easy way to list the goals associated for each maven lifecycle phase for a given project.
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Writing a compiler in its own language
...tuitively, it would seems that a compiler for language Foo cannot itself be written in Foo. More specifically, the first compiler for language Foo cannot be written in Foo, but any subsequent compiler could be written for Foo .
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Replace a value if null or undefined in JavaScript
...|| 10; //j is now 10
Note that the logical operator || does not return a boolean value but the first value that can be converted to true.
Additionally use an array of objects instead of one single object:
var options = {
filters: [
{
name: 'firstName',
value: ...
How can I convert immutable.Map to mutable.Map in Scala?
How can I convert immutable.Map to mutable.Map in Scala so I can update the values in Map ?
5 Answers
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HTML5 dragleave fired when hovering a child element
The problem I'm having is that the dragleave event of an element is fired when hovering a child element of that element. Also, dragenter is not fired when hovering back the parent element again.
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Equals(=) vs. LIKE
When using SQL, are there any benefits of using = in a WHERE clause instead of LIKE ?
15 Answers
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