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Check if $_POST exists
...sts and if it does, print it inside another string, if not, don't print at all.
14 Answers
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jQuery - prevent default, then continue default
...ault form submission behavior, then do my additional processing (it's basically calling Google Maps API and adding a few hidden fields to the form) -- and then I need the form to submit.
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How to automatically generate a stacktrace when my program crashes
... the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace.
28 Answers
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How to install Boost on Ubuntu
I'm on Ubuntu, and I want to install Boost. I tried with
7 Answers
7
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How to compare dates in Java? [duplicate]
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The normal usually "left inclusive, right exclusive", this why I think this should be specified exactly. With "left inclusive, right exclusive" borders, you can specify fe: a month interval easily: [2016/04/01, 2016/05/01], this why this i...
doGet and doPost in Servlets
...ould use doPost() when you want to intercept on HTTP POST requests. That's all. Do not port the one to the other or vice versa (such as in Netbeans' unfortunate auto-generated processRequest() method). This makes no utter sense.
GET
Usually, HTTP GET requests are idempotent. I.e. you get exactly t...
What is a postback?
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When does it happen?
A postback originates from the client browser. Usually one of the controls on the page will be manipulated by the user (a button clicked or dropdown changed, etc), and this control will initiate a postback. The state of this control, plus all other controls on the page,(know...
Java OCR implementation [closed]
...ve to see how it's implemented in a language I thoroughly understand. Naturally, this would require that the implementation is open source, but I'm still interested in proprietary solutions, as I could at least check out the performance in that case.
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Creating a custom JButton in Java
...mplement AbstractButton and conform to the guidelines set out by the Swing API. A good starting point is to look at the javax.swing.LookAndFeel and javax.swing.UIManager classes.
http://docs.oracle.com/javase/8/docs/api/javax/swing/LookAndFeel.html
http://docs.oracle.com/javase/8/docs/api/javax/sw...
optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
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Though I really like the compact syntax of hgimenez's suggestion (above), this approach has the advantage of being very clear re: what's going on. (Still has the downside of not letting you pass nil as a value for the local)
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