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Java null check why use == instead of .equals()
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Foo f3 = null;
System.out.println(f3 == null);
// outputs true, `f3` doesn't have any object reference assigned to it
System.out.println(f3.equals(null));
// Throws a NullPointerException, you can't dereference `f3`, it doesn't refer to anything
System.out.println(f1.equals(f3));
// Outputs ...
How to check if the URL contains a given string?
...alue of 0 if .href begins with "franky". Of course, in this case, it never does as .href always begins with the protocol, typically "http:" or "file:". Despite this, you should ALWAYS use >-1, >=0 or, my preference, !==-1 when comparing with the result of indexOf().
– rob...
“Could not find any information for class named ViewController”
...he same bug and fixed it with this answer. How come in so many years Apple doesn't fix it for good?
– SkyWalker
May 5 '16 at 15:20
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UITextfield leftView/rightView padding on iOS7
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This does not seem to work anymore with iOS 13 and Xcode 11 Beta 7. Works fine on iOS 11/12 though.
– PatrickDotStar
Sep 2 '19 at 15:33
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How can I use UIColorFromRGB in Swift?
...d put the first numbers in front of the "/" sign as a decimal number so it does not truncate to an integer.
– Andy Lebowitz
Jan 1 '18 at 21:43
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.NET String.Format() to add commas in thousands place for a number
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@MacSigler That's the thing though, this code does not always print out a comma. Only when the culture is one that expects commas (e.g. en-US or invariant). If the culture is one that expects another separator (e.g. .), .NET will automatically replace the comma with that...
How can I change the color of a part of a TextView?
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The problem with Spannable is that ellipsize=end doesn't work anymore. Which is a pretty serious problem in some cases.
– Juan Carlos Ospina Gonzalez
Nov 22 '16 at 9:28
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1052: Column 'id' in field list is ambiguous
...IN syntax (yours is ANSI-89). While they perform the same, ANSI-89 syntax does not support OUTER joins (RIGHT, LEFT, FULL). ANSI-89 syntax should be considered deprecated, there are many on SO who will not vote for ANSI-89 syntax to reinforce that. For more information, see this question.
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What is the best way to test for an empty string with jquery-out-of-the-box?
...wrote about the difference between what was asked and what the linked code does
– SpoonMeiser
Nov 17 '15 at 7:02
This ...
Replace transparency in PNG images with white background
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Somehow this doesn't work for me... I tried "-transparent-color white", but got an exception/warning.
– William Niu
Aug 9 '10 at 4:49
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