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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?

... @Svish yes, now I think of it again, it is a null object, so you're right, it won't work. It wouldn't in Java neither: null pointer exception. Never mind. Tnx for your reply! [edit: tested it in Java: NullPointerException. With the diffe...
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How do I install an old version of Django on virtualenv?

...eady installed, do easy_install pip, then never touch easy_install again). Now you can do: pip install Django==1.0.4 share | improve this answer | follow | ...
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Breakpoint on property change

... value; } }; const wrappedObject = new Proxy(originalObject, handler); Now use wrappedObject where you would supply originalObject instead and examine the call stack on break. share | improve th...
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The forked VM terminated without saying properly goodbye. VM crash or System.exit called

... This is the exact problem I was facing on my Jenkins and it's resolved now. Thanks. – Vighnesh Pai Nov 14 '18 at 6:26 ...
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Maximum Year in Expiry Date of Credit Card

...y 2017: Just had an end user with a card that expired almost 50 years from now. share | improve this answer | follow | ...
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How to create an array containing 1…N

...for creating a JavaScript array containing 1 through to N where N is only known at runtime. 61 Answers ...
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Removing event listener which was added with bind

...s number one hit and it didn't have a proper solution till you posted this now. – Blargh Apr 16 '14 at 19:24 ...
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LEFT OUTER JOIN in LINQ

... Now as an extension method: public static class LinqExt { public static IEnumerable<TResult> LeftOuterJoin<TLeft, TRight, TKey, TResult>(this IEnumerable<TLeft> left, IEnumerable<TRight> right, Fu...
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Is it fine to have foreign key as primary key?

...event people with null values from accessing the third (technically second now) table. But the question OP asked contains the the line " ...when signing up.. ...his profile record is automatically created...", Making this redundant. – Tshsmith Feb 10 '17 at 1...
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How to change line color in EditText

... android:backgroundTint="@android:color/holo_red_light" /> Update 3 Now We have with back support AppCompatEditText Note: We need to use app:backgroundTint instead of android:backgroundTint <android.support.v7.widget.AppCompatEditText android:layout_width="match_parent" android:layou...