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How do I show/hide a UIBarButtonItem?

...s = [self.toolbarItems mutableCopy]; // This is how you remove the button from the toolbar and animate it [toolbarButtons removeObject:self.myButton]; [self setToolbarItems:toolbarButtons animated:YES]; // This is how you add the button to the toolbar and animate it if (![toolbarButtons containsOb...
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Update a dataframe in pandas while iterating row by row

...in my pseudo code I do the modification on the dataframe, not on the value from the iterator. The iterator value is only used for the index of the value/object. What will fail is row['ifor']=some_thing, for the reasons mentioned in the documentation. – rakke Ma...
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Angularjs prevent form submission when input validation fails

... So the suggested answer from TheHippo did not work for me, instead I ended up sending the form as a parameter to the function like so: <form name="loginform" novalidate ng-submit="login.submit(loginForm)" class="css-form"> This makes the fo...
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What is Dependency Injection and Inversion of Control in Spring Framework?

...er ways as well.) By DI, the responsibility of creating objects is shifted from our application code to the Spring container; this phenomenon is called IoC. Dependency Injection can be done by setter injection or constructor injection. ...
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What's the best method in ASP.NET to obtain the current domain?

...on. As such, you should use IsDefaultPort as in the Accepted Answer above from Carlos Muñoz. share | improve this answer | follow | ...
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What's the “average” requests per second for a production web application?

...hen it came down to $$ / event / second) and our requests / seconds ranged from 29 requests / second / node up to 150 requests/second/node. Giving better hardware of course gives better results but not the best ROI. Anyways, this post was great as I was looking for some parallels to see if my numbe...
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Why does pattern matching in Scala not work with variables?

...g with upper case, or in back ticks, do you need to be aware that it comes from the surrounding scope. share | improve this answer | follow | ...
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Run Command Prompt Commands

Is there any way to run command prompt commands from within a C# application? If so how would I do the following: 14 Answe...
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Getting the exception value in Python

... edit My bad !!! It seems that BaseException.message has been deprecated from 2.6, finally, it definitely seems that there is still not a standardized way to display exception messages. So I guess the best is to do deal with e.args and str(e) depending on your needs (and possibly e.message if the ...
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What does the CSS rule “clear: both” do?

... @mr-alien these "bugs" like jsfiddle.net/N82UD/138 kept me away from float. I avoid them like Ebola. Perhaps you can help me make peace with floats once and for all. – Omar Mar 19 '15 at 20:53 ...