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Find all storage devices attached to a Linux machine [closed]
I have a need to find all of the writable storage devices attached to a given machine, whether or not they are mounted.
7...
How to execute a function when page has fully loaded?
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That's called load. It came waaaaay before DOM ready was around, and DOM ready was actually created for the exact reason that load waited on images.
window.addEventListener('load', function () {
alert("It's loaded!")
})
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How to design a database for User Defined Fields?
...rformance is the primary concern, I would go with #6... a table per UDF (really, this is a variant of #2). This answer is specifically tailored to this situation and the description of the data distribution and access patterns described.
Pros:
Because you indicate that some UDFs
have values for a...
Can I use non existing CSS classes?
... of rules for handling parsing errors, none of which concern the markup at all. Essentially, this means HTML and CSS are completely independent of each other in the validity aspect.1
Once you understand that, it becomes clear that there is no side effect of not defining a .target rule in your style...
How to check if all list items have the same value and return it, or return an “otherValue” if they
If all the items in a list have the same value, then I need to use that value, otherwise I need to use an “otherValue”. I can’t think of a simple and clear way of doing this.
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Rails ActiveRecord date between
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I would personally created a scope to make it more readable and re-usable:
In you Comment.rb, you can define a scope:
scope :created_between, lambda {|start_date, end_date| where("created_at >= ? AND created_at <= ?", start_date, e...
Efficiency of purely functional programming
...ssible asymptotic slowdown that can happen when programming purely functionally as opposed to imperatively (i.e. allowing side-effects)?
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Mercurial - all files that changed in a changeset?
How can you determine all the files that changed in a given changeset?
7 Answers
7
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jQuery access input hidden value
...$(':hidden#foo').val());
alert($('input:hidden[name=zyx]').val());
Those all mean the same thing in this example.
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Cannot set some HTTP headers when using System.Net.WebRequest
...ht to the last section of the answer.
If you want to know better, read it all, and i hope you'll enjoy...
I countered this problem too today, and what i discovered today is that:
the above answers are true, as:
1.1 it's telling you that the header you are trying to add already exist and you s...