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How to show “if” condition on a sequence diagram?

... If else condition, also called alternatives in UML terms can indeed be represented in sequence diagrams. Here is a link where you can find some nice resources on the subject http://www.ibm.com/developerworks/rational/library/3101.html ...
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c# datatable to csv

...he data is saved into the csv file, however the data is not separated. It all exists within the first cell of each row. 2...
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Why do we need tuples in Python (or any immutable data type)?

... immutable objects can allow substantial optimization; this is presumably why strings are also immutable in Java, developed quite separately but about the same time as Python, and just about everything is immutable in truly-functional languages. in...
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Using ZXing to create an Android barcode scanning app [duplicate]

...de reader application which — via Android's intent mechanism — can be called by other applications who wish to integrate barcode scanning. The easiest way to do this is to call the ZXing SCAN Intent from your application, like this: public Button.OnClickListener mScan = new Button.OnClickListe...
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How to generate a range of numbers between two numbers?

... This is a fantastically elegant solution – Aaron Hudon Dec 22 '16 at 19:13 9 ...
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contenteditable change events

... (mouseup, for example). You may want to poll the element's contents as a fallback. UPDATE 29 October 2014 The HTML5 input event is the answer in the long term. At the time of writing, it is supported for contenteditable elements in current Mozilla (from Firefox 14) and WebKit/Blink browsers, but ...
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Is there an opposite to display:none?

...emoves an element from the page layout entirely, as if it wasn’t there. All other values for display cause the element to be a part of the page, so in a sense they’re all opposite to display:none. But there isn’t one value that’s the direct converse of display:none - just like there's no o...
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Background image jumps when address bar hides iOS/Android/Mobile Chrome

...resizing URL bars in iOS and Android. I understand the purpose, but they really need to think through the strange functionality and havoc they bring to websites. The latest change, is you can no longer "hide" the URL bar on page load on iOS or Chrome using scroll tricks. EDIT: While the above scrip...
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How can I calculate the number of lines changed between two commits in git?

...e - that's a task for git log. Ron DeVera touches on this, but you can actually do a lot more than what he mentions. Since git log internally calls the diff machinery in order to print requested information, you can give it any of the diff stat options - not just --shortstat. What you likely want to...
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What is the purpose of global.asax in asp.net

... outline of the purpose of the global.asax file. Effectively, global.asax allows you to write code that runs in response to "system level" events, such as the application starting, a session ending, an application error occuring, without having to try and shoe-horn that code into each and every pag...