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Android - Back button in the title bar
In many apps (Calendar, Drive, Play Store) when you tap a button and enter a new activity, the icon in the title bar turns into a back button, but for the app I am making, it doesn't do that. How do I make that icon take you back to the previous screen?
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Detect Click into Iframe using JavaScript
I understand that it is not possible to tell what the user is doing inside an iframe if it is cross domain. What I would like to do is track if the user clicked at all in the iframe . I imagine a scenario where there is an invisible div on top of the iframe and the the div will just then ...
How to handle static content in Spring MVC?
I am developing a webapp using Spring MVC 3 and have the DispatcherServlet catching all requests to '/' like so (web.xml):
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Backbone.js: get current route
... documentation:
"
[...]
History serves as a global router (per frame) to handle hashchange events or pushState, match the appropriate route, and trigger callbacks. You shouldn't ever have to create one of these yourself — you should use the reference to Backbone.history that will be created for y...
How can I determine if a variable is 'undefined' or 'null'?
...}
Because null == undefined is true, the above code will catch both null and undefined.
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What is the equivalent of MATLAB's repmat in NumPy
... repmat(a, m, n) is tile(a, (m, n)).
This works with multiple dimensions and gives a similar result to matlab. (Numpy gives a 3d output array as you would expect - matlab for some reason gives 2d output - but the content is the same).
Matlab:
>> repmat([1;1],[1,1,1])
ans =
1
1
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“Large data” work flows using pandas
...d to puzzle out an answer to this question for many months while learning pandas. I use SAS for my day-to-day work and it is great for it's out-of-core support. However, SAS is horrible as a piece of software for numerous other reasons.
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How to remove extension from string (only real extension!)
...d be improved using something such as array-walk
– CrandellWS
Feb 3 '15 at 16:10
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What is a good Java library to zip/unzip files? [closed]
I looked at the default Zip library that comes with the JDK and the Apache compression libs and I am unhappy with them for 3 reasons:
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Get environment variable value in Dockerfile
...that users can pass at build-time to the builder with the docker build command using the --build-arg <varname>=<value> flag.
So your Dockerfile will have this line:
ARG request_domain
or if you'd prefer a default value:
ARG request_domain=127.0.0.1
Now you can reference this vari...