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How to check if object has any properties in JavaScript?

...d Apr 20 '10 at 6:49 Daniel VassalloDaniel Vassallo 301k6666 gold badges475475 silver badges424424 bronze badges ...
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Read a zipped file as a pandas DataFrame

... you want to read a zipped or a tar.gz file into pandas dataframe, the read_csv methods includes this particular implementation. df = pd.read_csv('filename.zip') Or the long form: df = pd.read_csv('filename.zip', compression='zip', header=0, sep=',', quotechar='"') Description of the compr...
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What is the difference between YAML and JSON?

What are the differences between YAML and JSON, specifically considering the following things? 13 Answers ...
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Difference between global and device functions

Can anyone describe the differences between __global__ and __device__ ? 9 Answers ...
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How to filter (key, value) with ng-repeat in AngularJs?

...ular filters can only be applied to arrays and not objects, from angular's API - "Selects a subset of items from array and returns it as a new array." You have two options here: 1) move $scope.items to an array or - 2) pre-filter the ng-repeat items, like this: <div ng-repeat="(k,v) in fil...
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Logical operators (“and”, “or”) in DOS batch

...an implicit conjunction. IF Exist File1.Dat IF Exist File2.Dat GOTO FILE12_EXIST_LABEL If File1.Dat and File1.Dat exist then jump the label FILE12_EXIST_LABEL. See also: IF /? share | improve th...
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In what cases do I use malloc and/or new?

I see in C++ there are multiple ways to allocate and free data and I understand that when you call malloc you should call free and when you use the new operator you should pair with delete and it is a mistake to mix the two (e.g. Calling free() on something that was created with the new ...
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How do I convert datetime to ISO 8601 in PHP

... than ISO8601 (the colon is missing in the TZ, ISO8601 expects times to be all with OR all without the colon, not a mixture) - date('c') does produces a strict ISO 8601 valid date - This could cause hard to trace bugs if code expects a strict ISO 8601 datetime format. Ref: en.wikipedia.org/wiki/ISO_...
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What is the difference between LINQ ToDictionary and ToLookup

...Lookup and ToDictionary (the methods themselves) have pretty much the same API – Marc Gravell♦ Apr 14 '11 at 6:00 ...
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What's the scope of a variable initialized in an if statement?

...ked only at runtime -- that is, when you get to the print x statement. If __name__ didn't equal "__main__" then you would get an exception: NameError: name 'x' is not defined. share | improve this ...