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onclick open window and specific size
...hout units (width=400 not width=400px).
In most browsers it will not work if it is not written without line breaks, once the variables are setup have everything in one line:
<a href="/index2.php?option=com_jumi&amp;fileid=3&amp;Itemid=11" onclick="window.open(this.href,'targetWindow','t...
How can I define a composite primary key in SQL?
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Just for clarification: a table can have at most one primary key. A primary key consists of one or more columns (from that table). If a primary key consists of two or more columns it is called a composite primary key. It is defined as fol...
Why use a prime number in hashCode?
...hogonal prime factorizations.
Suppose there are 8 buckets to insert into. If the number you are using to multiply by is some multiple of 8, then the bucket inserted into will only be determined by the least significant entry (the one not multiplied at all). Similar entries will collide. Not good fo...
What is the difference between i++ and ++i?
... post-increment operators. In both cases the variable is incremented, but if you were to take the value of both expressions in exactly the same cases, the result will differ.
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Inline instantiation of a constant List
...ng>, ReadOnlyCollection<string> or something else is up to you... if you expect that it should only be treated as a sequence, then IEnumerable<string> would probably be most appropriate. If the order matters and you want people to be able to access it by index, IList<T> may be a...
What is syntax for selector in CSS for next element?
If I have a header tag <h1 class="hc-reform">title</h1>
5 Answers
5
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Sort hash by key, return hash in Ruby
...ere is no concept of a sorted hash. So no, what you're doing isn't right.
If you want it sorted for display, return a string:
"{" + h.sort.map{|k,v| "#{k.inspect}=>#{v.inspect}"}.join(", ") + "}"
or, if you want the keys in order:
h.keys.sort
or, if you want to access the elements in order...
How to refer environment variable in POM.xml?
...ely describe your project so please use environment variables judiciously. If you make your builds dependent on your environment, they are harder to reproduce
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Should a .sln be committed to source control?
...other answers that solution files are useful and should be committed, even if they're not used for official builds. They're handy to have for anyone using Visual Studio features like Go To Definition/Declaration.
By default, they don't contain absolute paths or any other machine-specific artifacts....
MySQL - UPDATE query based on SELECT Query
I need to check (from the same table) if there is an association between two events based on date-time.
11 Answers
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