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JavaScript function in href vs. onclick
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The typical path these days is to use a javascript library (eg. jquery) and create an event handler using that library. It would look something like:
$('a').click( function(e) {e.preventDefault(); /*your_code_here;*/ return false; } );
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Java system properties and environment variables
What's the difference between system properties System.getProperties() and environment variables System.getenv() in a JVM?
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When to use nested classes and classes nested in modules?
I'm pretty familiar with when to use subclasses and modules, but more recently I've been seeing nested classes like this:
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Use of 'const' for function parameters
... you just make functions const when necessary or do you go the whole hog and use it everywhere? For example, imagine a simple mutator that takes a single boolean parameter:
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When to use a “has_many :through” relation in Rails?
I am trying to understand what has_many :through is and when to use it (and how). However, I am not getting it. I am reading Beginning Rails 3 and I tried Googling, but I am not able to understand.
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How do I bottom-align grid elements in bootstrap fluid layout
...ich I want to fill the span normally. The second column just has a button and some text, which I want to bottom align relative to the cell in the first column.
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Difference between jQuery `click`, `bind`, `live`, `delegate`, `trigger` and `on` functions (with an
...list of events up in another page, the API itself is tremendously helpful, and all of what I'm discussing below is linked directly from this page.
First, .click(function) is literally a shortcut for .bind('click', function), they are equivalent. Use them when binding a handler directly to an eleme...
No Swipe Back when hiding Navigation Bar in UINavigationController
...pan swipe back gesture . I can write custom gestures but I prefer not to and to rely on the UINavigationController back swipe gesture instead.
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Synchronization vs Lock
...in order to access the critical resource. It gives method such as park() and unpark() .
11 Answers
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Java: Clear the console
...ws, here is a clarification:
Runtime.getRuntime().exec("cls");
This command does not work, for two reasons:
There is no executable named cls.exe or cls.com in a standard Windows installation that could be invoked via Runtime.exec, as the well-known command cls is builtin to Windows’ command l...