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How to convert string into float in JavaScript?

... If they're meant to be separate values, try this: var values = "554,20".split(",") var v1 = parseFloat(values[0]) var v2 = parseFloat(values[1]) If they're meant to be a single value (like in French, where one-half is writ...
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What is the difference between Numpy's array() and asarray() functions?

What is the difference between Numpy's array() and asarray() functions? When should you use one rather than the other? They seem to generate identical output for all the inputs I can think of. ...
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When is “i += x” different from “i = i + x” in Python?

I was told that += can have different effects than the standard notation of i = i + . Is there a case in which i += 1 would be different from i = i + 1 ? ...
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How can I tell when HttpClient has timed out?

As far as I can tell, there's no way to know that it's specifically a timeout that has occurred. Am I not looking in the right place, or am I missing something bigger? ...
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How do you create a yes/no boolean field in SQL server?

... And if you link the table in an Access database, true will have the value -1 and false will have the value 0. At least in Access 2003. (This is the version I had handy that was connected to a customer's MSSQL database). ...
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Print a list in reverse order with range()?

...d() function: reversed(range(10)) It's much more meaningful. Update: If you want it to be a list (as btk pointed out): list(reversed(range(10))) Update: If you want to use only range to achieve the same result, you can use all its parameters. range(start, stop, step) For example, to gener...
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What is the right way to check for a null string in Objective-C?

...ter equality. See Topics for Cocoa: Using Null. So a good test might be: if (title == (id)[NSNull null] || title.length == 0 ) title = @"Something"; Note how you can use the fact that even if title is nil, title.length will return 0/nil/false, ie 0 in this case, so you do not have to special cas...
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How do I sort a list by different parameters at different timed

... int result = option.compare(o1, o2); if (result != 0) { return result; } } return 0; } }; } } An example of usage (with a static import). public static void ma...
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How to check the extension of a filename in a bash script?

...nk you want to say "Are the last four characters of $file equal to .txt?" If so, you can use the following: if [ ${file: -4} == ".txt" ] Note that the space between file: and -4 is required, as the ':-' modifier means something different. ...
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In Python, how do I determine if an object is iterable?

...iterable object and with them the above code doesn't work well. As a real life example we can use Faker. The above code reports it being iterable but actually trying to iterate it causes an AttributeError (tested with Faker 4.0.2): >>> from faker import Faker >>> fake = Faker() &g...