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How do I clear all options in a dropdown box?
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You can use the following to clear all the elements.
var select = document.getElementById("DropList");
var length = select.options.length;
for (i = length-1; i >= 0; i--) {
select.options[i] = null;
}
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How to remove line breaks (no characters!) from the string?
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You should be able to replace it with a preg that removes all newlines and carriage returns. The code is:
preg_replace( "/\r|\n/", "", $yourString );
Even though the \n characters are not appearing, if you are getting carriage returns there is an invisible character there. The pr...
What is a lambda expression in C++11?
... }
} f;
std::for_each(v.begin(), v.end(), f);
}
however this is not allowed, f cannot be passed to a template function in C++03.
The new solution
C++11 introduces lambdas allow you to write an inline, anonymous functor to replace the struct f. For small simple examples this can be cleaner t...
node.js database [closed]
... EC2 with ease. Also, note that we are not using Mongoose. Talking about challenges (assuming you are already good at Node), you need to be good at Mongo way of doing the things (querying and aggregation ) for any serious application or service development. Learning how Mongo is different from other...
Volatile vs Static in Java
Is it correct to say that static means one copy of the value for all objects and volatile means one copy of the value for all threads?
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Why do browsers match CSS selectors from right to left?
...tching it has one element (the one it's trying to determine style for) and all your rules and their selectors and it needs to find which rules match the element. This is different from the usual jQuery thing, say, where you only have one selector and you need to find all the elements that match tha...
What is REST? Slightly confused [closed]
...ps go over it a few times slowly, but you will grasp the concept, it's actually not hard at all. People just have a tendency to explain it poorly.
– Anders
Jan 12 '11 at 0:01
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Is there a SASS.js? Something like LESS.js?
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There is no officially sanctioned JavaScript implementation of sass or scss. There are a couple of implementations in progress that I've seen, but none that I can recommend using at this time.
However, please a few points:
Why should you ma...
How to change the author and committer name and e-mail of multiple commits in Git?
...ch the docs now give this warning:
git filter-branch has a plethora of pitfalls that can produce non-obvious manglings of the intended history rewrite (and can leave you with little time to investigate such problems since it has such abysmal performance). These safety and performance issues cannot b...
How do I tell CPAN to install all dependencies?
How do I tell CPAN to install all dependencies?
10 Answers
10
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