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What is the difference between return and return()?

... 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...
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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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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 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...
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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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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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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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What does an exclamation mark mean in the Swift language?

... 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...
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Fastest way to determine if an integer is between two integers (inclusive) with known sets of values

Is there a faster way than x >= start && x <= end in C or C++ to test if an integer is between two integers? ...