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How best to determine if an argument is not sent to the JavaScript function

... it might not be feasible if there's more than one optional argument. The test for undefined is next 'best' - it only 'fails' if the function is explicitly called with an undefined value, which in all likelyhood should be treated the same way as omitting the argument. The use of the || operator mi...
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Rename a dictionary key

...or python 3.5, I think dict.pop is workable for an OrderedDict based on my test. – Daniel Dec 5 '17 at 13:30 6 ...
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Is there a C# type for representing an integer Range?

... the range.</summary> /// <param name="value">The value to test</param> /// <returns>True if the value is inside Range, else false</returns> public bool ContainsValue(T value) { return (this.Minimum.CompareTo(value) <= 0) && (value.Com...
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#ifdef replacement in the Swift language

... usual, you can set a different value when in Debug or when in Release. I tested it in real code and it works; it doesn't seem to be recognized in a playground though. You can read my original post here. IMPORTANT NOTE: -DDEBUG=1 doesn't work. Only -D DEBUG works. Seems compiler is ignoring a f...
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Test if object implements interface

...tance(object); } For example, java.io.Serializable.class.isInstance("a test string") evaluates to true. share | improve this answer | follow | ...
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How do I read CSV data into a record array in NumPy?

... I tested code similar to this with a csv file containing 2.6 million rows and 8 columns. numpy.recfromcsv() took about 45 seconds, np.asarray(list(csv.reader())) took about 7 seconds, and pandas.read_csv() took about 2 seconds ...
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Class method differences in Python: bound, unbound and static

...ically, a call to a member function (like method_one), a bound function a_test.method_one() is translated to Test.method_one(a_test) i.e. a call to an unbound method. Because of that, a call to your version of method_two will fail with a TypeError >>> a_test = Test() >>> a_...
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How to bring back “Browser mode” in IE11?

...ice I've given here (and elsewhere) to avoid using compatibility modes for testing is still valid: If you want to test your site for compatibility with older IE versions, you should always do your testing in a real copy of those IE version. However, this does mean that the registry hack described i...
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How to find whether or not a variable is empty in Bash

... In Bash at least the following command tests if $var is empty: if [[ -z "$var" ]]; then # Do what you want fi The command man test is your friend. share | i...
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Why must jUnit's fixtureSetup be static?

... JUnit always creates one instance of the test class for each @Test method. This is a fundamental design decision to make it easier to write tests without side-effects. Good tests do not have any order-of-run dependencies (see F.I.R.S.T) and creating fresh instances ...