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@OneToMany List vs Set difference
...of addresses, you won't be able to use a single query to load persons with all their contacts and all their addresses. The solution in this case is to make two queries (which avoids the cartesian product), or to use a Set instead of a List for at least one of the collections.
It's often hard to use...
Database Structure for Tree Data Structure
... using the employee ID to link an employee to their supervisor. This is usually a sub-optimal approach. An approach that often works better is to model the org structure separate from employees themselves, and maintain the employee as an attribute of the structure. This way, when an employee leaves ...
How to parse a string to an int in C++?
...g. ss << std::hex) before trying the conversion. But this means the caller must know a priori what base the number is -- and how can the caller possibly know that? The caller doesn't know what the number is yet. They don't even know that it is a number! How can they be expected to know what ba...
Case preserving substitute in Vim
...Job/g, then the Subvert command will switch to mixed-case mode and will do all the substitions as given by OP.
– shivams
Apr 26 at 22:53
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Difference between json.js and json2.js
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Then also add the 1st piece of code, all the values you specified are Objects, therefore they will all be converted to use JSON.stringify automatically.
– Luca Matteis
Feb 16 '09 at 3:41
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Deleting elements from std::set while iterating
... is implementation dependent:
Standard 23.1.2.8:
The insert members shall not affect the validity of iterators and references to the container, and the erase members shall invalidate only iterators and references to the erased elements.
Maybe you could try this -- this is standard conforming:...
How to find the statistical mode?
...max, and returns the first-appearing value of the set of modes. To return all modes, use this variant (from @digEmAll in the comments):
Modes <- function(x) {
ux <- unique(x)
tab <- tabulate(match(x, ux))
ux[tab == max(tab)]
}
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How to print a list of symbols exported from a dynamic library
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Use nm -a your.dylib
It will print all the symbols including globals
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How to allow keyboard focus of links in Firefox?
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In System Preferences → Keyboard, in the Shortcuts pane, check the “all controls” radio at the bottom.
In Firefox, type "about:config" in the URL bar. There is no accessibility.tabfocus preference on the mac, so you'll have to make one. Right click in the window, create a new "integer" pref...
Change how fast “title” attribute's tooltip appears
...ustomizable: Just download or include jquery UI in your page.
If you want all the tooltips of your page to show immediately at hover, just use this:
$(document).tooltip({show: null});
Note that this applies to all elements that have a 'title' attribute.
You can modify the selector to affect only...