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How to display request headers with command line curl
...differently to a HEAD as opposed to a GET. It will be the same most of the time, but not always. To see only the headers use curl -o /dev/null -D /dev/stdout. That will give the expected results 100% of the time.
– Bruno Bronosky
Apr 14 '16 at 22:29
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Use of .apply() with 'new' operator. Is this possible?
...ke a more specific version so you don't have to pass the constructor every time. This is also slightly more efficient, since it doesn't need to create a new instance of the inner function every time you call it.
var createSomething = (function() {
function F(args) {
return Something.app...
Difference between HBase and Hadoop/HDFS
...database that runs on top your Hadoop cluster and provides you random real-time read/write access to your data.
You can store both structured and unstructured data in Hadoop, and HBase as well. Both of them provide you multiple mechanisms to access the data, like the shell and other APIs.
And, HBas...
JavaScript and Threads
...re was some hacky way to simulate an asynchronous execution with Yield, setTimeout(), setInterval(), XMLHttpRequest or event handlers (see the end of this post for an example with yield and setTimeout()).
But with HTML5 we can now use Worker Threads to parallelize the execution of functions. Here i...
Should switch statements always contain a default clause?
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At the same time if you are checking a GET parameter, you might not want an exception thrown every time a user changes the get url to something that is not valid :[
– Andrew
Aug 13 '15 at 18:33
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Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
....7 doesn't include Z character (Zulu or zero offset) at the end of UTC datetime object's isoformat string unlike JavaScript?
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^M at the end of every line in vim
When I am editing source files using vim and other editors sometimes at the end of the line I get these ^M characters at the end of each line. I think that it has something to do with editing a file in windows and then in linux. How can I remove all of these automatically?
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AngularJS: How to clear query parameters in the URL?
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helpful answer indeed. In my scenario, each time after the first time I had trigger $location.path('/reportmaint').search({<myparams> }), it never cleaned out the previous query parameters.
– bob.mazzo
Oct 6 '14 at 17:51
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Avoiding if statement inside a for loop?
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Pass in the body of the loop as a functor. It gets inlined at compile-time, no performance penalty.
The idea of passing in what varies is ubiquitous in the C++ Standard Library. It is called the strategy pattern.
If you are allowed to use C++11, you can do something like this:
#include <...
Efficient string concatenation in C++
...object is returned after each +. That means that a new buffer is used each time. If you are doing a ton of extra + operations it is not efficient.
Why you can make it more efficient:
You are guaranteeing efficiency instead of trusting a delegate to do it efficiently for you
the std::string clas...