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What's the difference of “./configure” option “--build”, “--host” and “--target”?
...arget only applies when you are compiling toolchains. When you are doing normal cross-compilation of a library or binary you use
--build=the architecture of the build machine
--host=the architecture that you want the file to run on
However, when you are building toolchains, things can get more ...
When to favor ng-if vs. ng-show/ng-hide?
...:
ng-if will remove elements from DOM. This means that all your handlers or anything else attached to those elements will be lost. For example, if you bound a click handler to one of child elements, when ng-if evaluates to false, that element will be removed from DOM and your click handler will no...
addEventListener vs onclick
...
Both are correct, but none of them are "best" per se, and there may be a reason the developer chose to use both approaches.
Event Listeners (addEventListener and IE's attachEvent)
Earlier versions of Internet Explorer implement javas...
Difference between a SOAP message and a WSDL?
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A SOAP document is sent per request. Say we were a book store, and had a remote server we queried to learn the current price of a particular book. Say we needed to pass the Book's title, number of pages and ISBN number to the server.
Whenever we wanted to know the price, we'd send ...
swift case falling through
...default:
result = 3
}
Alternatively, you can use the fallthrough keyword:
var testVal = "hello"
var result = 0
switch testVal {
case "one":
fallthrough
case "two":
result = 1
default:
result = 3
}
share
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How to read data From *.CSV file using javascript?
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NOTE: I concocted this solution before I was reminded about all the "special cases" that can occur in a valid CSV file, like escaped quotes. I'm leaving my answer for those who want something quick and dirty, but I recommend Evan's answer for accuracy.
This...
When is it better to use an NSSet over an NSArray?
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When the order of the items in the collection is not important, sets offer better performance for finding items in the collection.
The reason is that a set uses hash values to find items (like a dictionary) while an array has to iter...
How to sort Map values by key in Java?
I have a Map that has strings for both keys and values.
15 Answers
15
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Maven project.build.directory
In Maven, what does the project.build.directory refer to? I am a bit confused, does it reference the source code directory or the target directory in the Maven project?
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Interface or an Abstract Class: which one to use?
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Use an interface when you want to force developers working in your system (yourself included) to implement a set number of methods on the classes they'll be building.
Use an abstract class when you want to force developers working in your system (yourself inc...