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Show data on mouseover of circle

...and you don't need the mousehandler. The code would be something like vis.selectAll("circle") .data(datafiltered).enter().append("svg:circle") ... .append("svg:title") .text(function(d) { return d.x; }); If you want fancier tooltips, you could use tipsy for example. See here for an ex...
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How do I view the list of functions a Linux shared library is exporting?

...xported sumbols are indicated by a T. Required symbols that must be loaded from other shared objects have a U. Note that the symbol table does not include just functions, but exported variables as well. See the nm manual page for more information. ...
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Should I commit or rollback a read transaction?

... I create a temp table, populate it with ids, join it with a data table to select the data that goes with the ids, then delete the temp table. I'm really just reading data, and I don't care what happens to the temp table, since it's temporary... but from a performance perspective, would it be more ...
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Create objective-c class instance by name?

... id object = [[NSClassFromString(@"NameofClass") alloc] init]; share | improve this answer | follow | ...
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Unable to open project… cannot be opened because the project file cannot be parsed

...here projectname will be the name of your project. Now after right clicked select Show Packages Contents. After that open your projectname.pbxproj file in a text editor. Now search for the line containing <<<<<<< .mine, ======= and >>>>>>> .r. For example in...
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Is there a way to get element by XPath using JavaScript in Selenium WebDriver?

... For something like $x from chrome command line api (to select multiple elements) try: var xpath = function(xpathToExecute){ var result = []; var nodesSnapshot = document.evaluate(xpathToExecute, document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null ); for ( var i=0 ...
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what is reverse() in Django

... question = get_object_or_404(Question, pk=question_id) try: selected = question.choice_set.get(pk=request.POST['choice']) except KeyError: # handle exception pass else: selected.votes += 1 selected.save() return HttpResponseRedirect(reve...
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How to change context root of a dynamic web project in Eclipse?

...nd redeploy. It worked for me. If you are struck you have another choice: select the Tomcat server in the Servers view. Double clicking on that server (or selecting Open in the context menu) brings a multipage editor where there is a Modules page. Here you can change the root context of your module...
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What does this gdb output mean?

... SDK 5 / Simulator - happens as soon as the simulator tries to play sound (from a movie or any other sound source). Do not worry though, it won't be a problem on the actual device. You mentioned actual reports of users having trouble using your App - those problems are not related / connected to th...
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Default value of BOOL

...OL … @implementation MyClass … @synthesize isLandscape; - (void)awakeFromNib { [super awakeFromNib]; // Test for YES or NO if (isLandscape == YES) { ALog(@"isLandscape == YES"); } else if (isLandscape == NO) { ALog(@"isLandscape == NO"); } else { ALo...