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using lodash .groupBy. how to add your own keys for grouped output?
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Very nifty, but hard to wrap my head around. Can you explain the steps in between, especially the pairing and zipping (and the double zip, since _.object is an alias for _.zipObject).
– Benny Bottema
Jul 31 '15 at 9...
How to make the first option of selected with jQuery
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I recant my previous statement, was getting ahead of myself. $("#target").val("option:first"); works most everywhere but IE6 $("target").val($("#target option:first").val()); will work in IE6, because you are literally looking up the ...
How to clear an ImageView in Android?
I am reusing ImageView s for my displays, but at some point I don't have values to put it.
17 Answers
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Android: Go back to previous activity
...g about exiting an activity you need just for a bit .. e.g. OCR scanner in my case. Thanks!
– Gene Bo
Apr 9 '15 at 22:31
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What is the fastest way to send 100,000 HTTP requests in Python?
...ng CPython, you could (for example) just replace "print status, url" with "my_global_list.append((status, url))". (Most operations on) lists are implicitly thread-safe in CPython (and some other python implementations) due to the GIL, so this is safe to do.
– Tarnay Kálmán
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test a file upload using rspec - rails
...oever sees the comment and has the same question) I had the same issue. In my case, the first argument to post was a path helper method, whose only intended argument I didn't enclose in parentheses, so the following tokens were interpreted as additional args to the helper, rather than args for the p...
map function for objects (instead of arrays)
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There is no native map to the Object object, but how about this:
var myObject = { 'a': 1, 'b': 2, 'c': 3 };
Object.keys(myObject).map(function(key, index) {
myObject[key] *= 2;
});
console.log(myObject);
// => { 'a': 2, 'b': 4, 'c': 6 }
But you could easily iterate over an...
Use “ENTER” key on softkeyboard instead of clicking button
... do it by setting a OnKeyListener on your EditText.
Here is a sample from my own code. I have an EditText named addCourseText, which will call the function addCourseFromTextBox when either the enter key or the d-pad is clicked.
addCourseText = (EditText) findViewById(R.id.clEtAddCourse);
addCourse...
Tomcat: How to find out running tomcat version
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Though this is not recent, I thought, my answer can still help others:
cd tomcat/lib
java -cp catalina.jar org.apache.catalina.util.ServerInfo
and that's it.
Server version: Apache Tomcat/7.0.30
Server built: May 23 2013 02:54:10
Server number: 7.0.30.0
O...
What is Common Gateway Interface (CGI)?
...st for page ---> webserver ---[CGI]----> Server side Program ---> MySQL Server.
Most if not all, webservers can be configured to execute a program as a 'CGI'. This means that the webserver, upon receiving a request, will forward the data to a specific program, setting some environment vari...