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Should I use 'border: none' or 'border: 0'?

...t Webpack→LESS→PostCSS→PurgeCSS is a good 2020 stack. That all said, if you're hand-writing all your production CSS, I maintain —despite the grumbling in the comments— it does not hurt to be bandwidth conscious. Using border:0 will save an infinitesimal amount of bandwidth on its own, but ...
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PHP: How to remove all non printable characters in a string?

... 7 bit ASCII? If your Tardis just landed in 1963, and you just want the 7 bit printable ASCII chars, you can rip out everything from 0-31 and 127-255 with this: $string = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $string); It matches a...
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How do you get the logical xor of two variables in Python?

... If you're already normalizing the inputs to booleans, then != is xor. bool(a) != bool(b) share | improve this answer ...
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How to drop columns using Rails migration

...:table_name, :column_name, :type, :options within the change method, since if you specify the type reverting the migration is possible. From the documentation: The typeand options parameters will be ignored if present. It can be helpful to provide these in a migration's change method so it can be re...
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Java RegEx meta character (.) and ordinary dot?

In Java RegEx, how to find out the difference between . (dot) the meta character and the normal dot as we using in any sentence. How to handle this kind of situation for other meta characters too like ( * , + , \d ,...) ...
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How can I multiply all items in a list together with Python?

...ordsforthewise without the third argument, it throws a TypeError exception if you pass it an empty sequence – Francisco Couzo Jul 11 '16 at 3:41 1 ...
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How can I autoformat/indent C code in vim?

... What is the difference? – Ton van den Heuvel Mar 1 '10 at 13:35 3 ...
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C# short/long/int literal format?

...g var l = 1L; // long I think that's all... there are no literal specifiers for short/ushort/byte/sbyte share | improve this answer | follow | ...
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How can I calculate an md5 checksum of a directory?

... Note that the same checksum will be generated if a file gets renamed. So this doesn't truly fit a "checksum which will uniquely identify the directory as a whole" if you consider file layout part of the signature. – Valentin Milea J...
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What is the use of a private static variable in Java?

If a variable is declared as public static varName; , then I can access it from anywhere as ClassName.varName . I am also aware that static members are shared by all instances of a class and are not reallocated in each instance. ...