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What is the difference between null and undefined in JavaScript?
... Absolutely IS a data type: msdn.microsoft.com/en-us/library/ie/7wkd9z69(v=vs.94).aspx . The fact that typeof null returns object is a well known and documented bug in early versions of ECMAScript that has remained for backwards-compatibility. The link that you actually posted in your comment says h...
Show or hide element in React
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Yes, good point about state vs props. A better way to do this whould be like in the tutorial here, where the search bar and the results table are siblings instead of putting Results inside Search: facebook.github.io/react/docs/thinking-in-react.html
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Merge and interleave two arrays in Ruby
...for the Array class at http://www.ruby-doc.org/core/classes/Array.html#M000275.
This answer assumes that you don't want duplicate array elements. If you want to allow duplicate elements in your final array, a += b should do the trick. Again, if you don't want to mutate a, use a + b and assign the r...
Java - Convert integer to string [duplicate]
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answered Aug 9 '13 at 18:27
danjoniladanjonila
15711 silver badge77 bronze badges
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How to localize ASP.NET MVC application?
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answered Aug 4 '09 at 18:27
kevintechiekevintechie
72699 silver badges1313 bronze badges
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Reactive Extensions bug on Windows Phone
...u003cpath fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M25.6622 17.6335C27.8049 17.6335 29.3739 16.9402 30.2537 15.6379C30.8468 14.7755 30.9615 13.5579 30.9615 11.9512V6.59049C30.9615 5.28821 30.4833 4.66231 29.4502 4.66231C28.9913 4.66231 28.4555 4.94978 28.1109 5.50789C27.499 4.86533 26.7335 4....
.NET XML serialization gotchas? [closed]
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Another huge gotcha: when outputting XML through a web page (ASP.NET), you don't want to includ...
Bash if [ false ] ; returns true
...never appear." ; fi;
This is similar to doing something like echo '$foo' vs. echo "$foo".
When using the test statement, the result depends on the operators used.
if [ "$foo" = "$bar" ] # true if the string values of $foo and $bar are equal
if [ "$foo" -eq "$bar" ] # true if the integer values o...
Test or check if sheet exists
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answered Jul 14 '11 at 4:27
Tim WilliamsTim Williams
113k88 gold badges7575 silver badges9393 bronze badges
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How to reference generic classes and methods in xml documentation
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I actually believe for it to also work in VS2010 tooltips you need to indicate the number of generic arguments, e.g. "FancyClass1{T}.FancyMethod1{K}(T)"
– Stephen Drew
Oct 26 '11 at 11:47
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