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When to use an interface instead of an abstract class and vice versa?
...ng what an object is.
When we talk about an interface and define capabilities that we promise to provide, we are talking about establishing a contract about what the object can do.
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What's the purpose of the LEA instruction?
For me, it just seems like a funky MOV. What's its purpose and when should I use it?
16 Answers
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Pattern to avoid nested try catch blocks?
Consider a situation where I have three (or more) ways of performing a calculation, each of which can fail with an exception. In order to attempt each calculation until we find one that succeeds, I have been doing the following:
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Ruby - test for array
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edited Mar 30 at 18:35
siery
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answered Oct 6...
Seeding the random number generator in Javascript
Is it possible to seed the random number generator (Math.random) in Javascript?
13 Answers
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Iterate through object properties
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Iterating over properties requires this additional hasOwnProperty check:
for (var prop in obj) {
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
// do stuff
}
}
It's necessary because an object's pr...
Why does Android use Java? [closed]
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Some points:
Java is a known language, developers know it and don't have to learn it
it's harder to shoot yourself with Java than with C/C++ code since it has no pointer arithmetic
it runs in a VM, so no need to recompile it for every phone out there and easy to secure
large numb...
Keyboard shortcuts with jQuery
...and improved the js-hotkeys project. His version is available at:
http://github.com/jeresig/jquery.hotkeys
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How do you rename a Git tag?
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Here is how I rename a tag old to new:
git tag new old
git tag -d old
git push origin :refs/tags/old
git push --tags
The colon in the push command removes the tag from the remote repository. If you don't do this, Git will create the old tag on your machine when y...
Why can't I use the 'await' operator within the body of a lock statement?
The await keyword in C# (.NET Async CTP) is not allowed from within a lock statement.
8 Answers
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