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Prevent scrolling of parent element when inner element scroll position reaches top/bottom? [duplicat
...ser hits a scroll limit during a manipulation. No bounce effect is shown.
none - A bounce effect is shown when the user hits a scroll limit during a manipulation.
Granted, this property is supported on IE10+/Edge only. Still, here's a telling quote:
To give you a sense of how popular preventing sc...
Assign multiple columns using := in data.table, by group
...er to get two columns for each objectName from the dim output, rather than one column with two rows? data.table(objectName=ls())[,c("rows","cols"):=dim(get(objectName)),by=objectName] (I'm using data.table 1.8.11)
– dnlbrky
May 19 '14 at 2:00
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Create Directory if it doesn't exist with Ruby
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One shall use File.directory? rather than File.exists?
– Florin Asăvoaie
May 21 '15 at 7:46
5
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What is the difference between object keys with quotes and without quotes?
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There is no difference here. Just a matter of style. One of the reasons for doing this is being able to use 'super' or 'class' as a key since those are reserved keywords.
Some people might be tempted to pass in a string with whitespace then call o['I can have whitespace'] But ...
How to check a string for specific characters?
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Anyone able to explain why the conditional is that much faster than using any?
– Josh
Oct 14 '18 at 2:04
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Cross field validation with Hibernate Validator (JSR 303)
...alidator annotation, or in other words it's not suggested practice to have one field's validation annotation checking against other fields; cross-field validation should be done at the class level. Additionally, the JSR-303 Section 2.2 preferred way to express multiple validations of the same type i...
How to get all child inputs of a div element (jQuery)
...tle difference between $("#panel input") and $("#panel :input).
The first one will only retrieve elements of type input, that is <input type="...">, but not <textarea>, <button> and <select> elements. Thanks Nick, didn't know this myself and corrected my post accordingly. Le...
Web-scraping JavaScript page with Python
...rary with Phantom JS as a web driver fast enough and easy to get the work done.
Once you have installed Phantom JS, make sure the phantomjs binary is available in the current path:
phantomjs --version
# result:
2.1.1
Example
To give an example, I created a sample page with following HTML code. ...
Run a JAR file from the command line and specify classpath
...t would contain lines like this:
Main-Class: com.test.App
Class-Path: lib/one.jar lib/two.jar
Unfortunately you need to spell out each jar in the manifest (not a biggie as you only do once, and you can use a script to build the file or use a build tool like ANT or Maven or Gradle). And the refer...
How to prevent browser page caching in Rails
...application/xml mime-type).
Or, for an uglier, but still working approach, one could change the ActionDispatch::Response::DEFAULT_CACHE_CONTROL constant to 'no-cache'.
Of course, if the controller and/or action granularity is required, then it's better to do this in the controller.
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