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How to set the first option on a select box using jQuery?

... return $(this).prop('defaultSelected'); }).val(); }); }); DEMO: http://jsfiddle.net/weg82/257/ Original answer - INCORRECT In jQuery 1.6+ you need to use the .prop method to get the default selection: // Resets the name2 dropdown to its default value $('#name2').val( $('#name2'...
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How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?

...Other designs are less fragile, so I personally am afraid to recommend GCM based upon the amount of poor encryption code that I have seen in practice. If you need both, message integrity and encryption, you can combine two algorithms: usually we see CBC with HMAC, but no reason to tie yourself to C...
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How to print number with commas as thousands separators?

... In python 3.6 and up, f-strings add even more convenience. E.g. f"{2 ** 64 - 1:,}" – CJ Gaconnet Apr 19 '17 at 15:03  |  show 8 more commen...
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How do I find the width & height of a terminal window?

... Not a direct answer to the question, but a great demo script. – Chris Page Sep 28 '11 at 7:46 ...
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jQuery removeClass wildcard

...(0, 5) != "color") { $("#sample").addClass(classArr[i]); } } demo: http://jsfiddle.net/L2A27/1/ share | improve this answer | follow | ...
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R.exe, Rcmd.exe, Rscript.exe and Rterm.exe: what's the difference?

...d with /LARGEADDRESSAWARE and can allocate 4 GB RAM when run under Windows 64 bit, unlike R.exe (we're talking about 32 bit R running under 64 bit Windows). Why would the R people do this only for Rterm.exe and not for R.exe, if Rterm.exe is obsolete? – Meh Oct...
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How to overwrite existing files in batch?

... You can use : copy /b/v/y See SS64 on COPY. share | improve this answer | follow | ...
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How to convert integer to string in C? [duplicate]

...bits for int. When using numbers with greater bitsize, e.g. long with most 64-bit compilers, you need to increase the array size—at least 21 characters for 64-bit types. share | improve this answe...
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C++类的前置申明 - C/C++ - 清泛网 - 专注C/C++及内核技术

...用前置申明后,只能使用A的指针(32位编译器占4字节,64位编译器占8字节...class A; (而非 include "A.h",可能暂时都没有类A的定义) 使用前置申明后,只能使用A的指针(32位编译器占4字节,64位编译器占8字节),new一个A对象...
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char类型移动跨平台踩过的坑 - C/C++ - 清泛网 - 专注IT技能提升

...符号处理的,但是在ARM32下被当成了无符号导致问题,ARM64正常有符号。经调查,在PC上,char类型默认为signed-char,但是在一些嵌入式设备 char强转int时,发现在x86平台下是按照有符号处理的,但是在ARM32下被当成了无符号导致问...