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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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Big-oh vs big-theta [duplicate]

It seems to me like when people talk about algorithm complexity informally, they talk about big-oh. But in formal situations, I often see big-theta with the occasional big-oh thrown in. I know mathematically what the difference is between the two, but in English, in what situation would using big-oh...
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What is the difference between service, directive and module?

I have been reading a lot of docs, and I'm getting more and more confused. I basically can't figure out the difference between a ...
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Constructors vs Factory Methods [closed]

When modelling classes, what is the preferred way of initializing: 10 Answers 10 ...
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Rename a git submodule

Is there some easy way to rename a git submodule directory (other than going through the entire motion of deleting it and re-adding it with a new destination name). ...
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RESTful API methods; HEAD & OPTIONS

I'm writing a RESTful API module for an application in PHP, and I'm a bit mixed on the verbs HEAD and OPTIONS . 3 Answer...
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Why are trailing commas allowed in a list?

I am curious why in Python a trailing comma in a list is valid syntax, and it seems that Python simply ignores it: 5 Answer...
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How do I create a new line in Javascript?

I am printing a pyramid of stars, I can't get the new line to print. 17 Answers 17 ...
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Can I use break to exit multiple nested 'for' loops?

Is it possible to use the break function to exit several nested for loops? 20 Answers ...
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How do I remove the blue styling of telephone numbers on iPhone/iOS?

Is there a way to remove the default blue hyperlink colour from a telephone number when viewed on an iPhone? Like a specific Mobile Safari tag or CSS to add? ...