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When should I use “this” in a class?
...od of another object. The third is as a way to call alternate constructors from within a constructor.
Case 1: Using this to disambiguate variable references. In Java setter methods, we commonly pass in an argument with the same name as the private member variable we are attempting to set. We then a...
Passing parameters to a Bash function
...ters in a Bash function, but what comes up is always how to pass parameter from the command line.
7 Answers
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Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
...n errors on other input components are preventing the ajax listener method from being executed.
Then there's the @all. This has no special effect in process attribute, but only in update attribute. A process="@all" behaves exactly the same as process="@form". HTML doesn't support submitting multiple...
Checking if an object is a given type in Swift
...ld only use as without the ? if there is no way your program could recover from the object not being of that type because the program will immediately halt if it is not. Using the ? in the if statement allows the program to continue.
– drewag
Jun 6 '14 at 23:55...
How to pass a view's onClick event to its parent on Android?
...t whos background is a Selector. And the TextView's text is set to Spanned from HTML.
Then I set the TextView with the LinkMovementMethod.
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How can I detect if a browser is blocking a popup?
...r user input, or something important), but the popup blocker prevents this from happening.
8 Answers
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Read only the first line of a file?
...d in the docs, unless it is the only line in the file, the string returned from f.readline() will contain a trailing newline. You may wish to use f.readline().strip() instead to remove the newline.
The with statement automatically closes the file again when the block ends.
The with statement only wo...
Travel/Hotel API's? [closed]
...ever, they do not immediately allow you to use their API even for testing. From their answer:
"Apologies for the inconvenience caused, but it’s simply a business decision to limit access to our rich hotel content. Please kindly check back within the next 2-3 months, where we will be able to judge...
Encode html entities in javascript
...ivalents, which is simply &#nnn; where nnn is the unicode value we get from charCodeAt.
See it in action here: http://jsfiddle.net/E3EqX/13/ (this example uses jQuery for element selectors used in the example. The base code itself, above, does not use jQuery)
Making these conversions does not ...
Open file in a relative location in Python
...your actual working directory is. For example, you may not run the script from the directory the file is in. In this case, you can't just use a relative path by itself.
If you are sure the file you want is in a subdirectory beneath where the script is actually located, you can use __file__ to hel...