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Checking if a string can be converted to float in Python
I've got some Python code that runs through a list of strings and converts them to integers or floating point numbers if possible. Doing this for integers is pretty easy
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Difference between a theta join, equijoin and natural join
...e please help me better understand it? If I use the = sign on a theta join is it exactly the same as just using a natural join?
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Difference between modes a, a+, w, w+, and r+ in built-in open function?
In the python built-in open function, what is the exact difference between the modes w , a , w+ , a+ , and r+ ?
6 An...
What is the difference between return and return()?
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The same as between
var i = 1 + 1;
and
var i = (1 + 1);
That is, nothing. The parentheses are allowed because they are allowed in any expression to influence evaluation order, but in your examples they're just superfluous.
return is not a function, but a statement. It is syntactically...
valueOf() vs. toString() in Javascript
...hought that the toString() method got invoked whenever a string conversion is called for, but apparently it is trumped by valueOf().
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Checking if jquery is loaded using Javascript
I am attempting to check if my Jquery Library is loaded onto my HTML page. I am checking to see if it works, but something is not right. Here is what I have:
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What does an exclamation mark mean in the Swift language?
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What does it mean to "unwrap the instance"? Why is it necessary?
As far as I can work out (this is very new to me, too)...
The term "wrapped" implies we should think of an Optional variable as a present, wrapped in shiny paper, which might (sadly!) be empty.
When "wrap...
How do cache lines work?
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If the cache line containing the byte or word you're loading is not already present in the cache, your CPU will request the 64 bytes that begin at the cache line boundary (the largest address below the one you need that is multiple of 64).
Modern PC memory modules transfer 64 bits (8 ...
Difference between acceptance test and functional test?
What is the real difference between acceptance tests and functional tests?
11 Answers
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When should an IllegalArgumentException be thrown?
I'm worried that this is a runtime exception so it should probably be used sparingly.
Standard use case:
6 Answers
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