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inserting characters at the start and end of a string

... answered Apr 8 '12 at 1:00 AkavallAkavall 62.1k3838 gold badges170170 silver badges215215 bronze badges ...
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open read and close a file in 1 line of code

... You don't really have to close it - Python will do it automatically either during garbage collection or at program exit. But as @delnan noted, it's better practice to explicitly close it for various reasons. So, what you can do to keep ...
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Can ordered list produce result that looks like 1.1, 1.2, 1.3 (instead of just 1, 2, 3, …) with css?

... None of solutions on this page works correctly and universally for all levels and long (wrapped) paragraphs. It’s really tricky to achieve a consistent indentation due to variable size of marker (1., 1.2, 1.10, 1.10.5, …); it can’t be just “faked,” not even with a precompu...
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Resumable downloads when using PHP to send the file?

...hing obvious, and I have most definitely ignored some potential sources of errors, but it should be a start. There's a description of partial content here and I found some info on partial content on the documentation page for fread. ...
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内存调试技巧:C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术

...能是内存泄漏。其他资源(如信号量、网络句柄、数据库连接等)同样值得考虑。 内存错误分配 错误分配的管理不是很困难。下面是一个示例(请参见清单 3): 清单 3. 未初始化的指针 void f2(int datum) { int *p2; ...
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Convert a float64 to an int in Go

...problem in Go that can be unexpected (at least if you come from Java): "In all non-constant conversions involving floating-point or complex values, if the result type cannot represent the value the conversion succeeds but the result value is implementation-dependent." (golang.org/ref/spec#Conversion...
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Bubble Sort Homework

...cient or readable. In the for loop, you use the variable element. Technically, element is not an element; it's a number representing a list index. Also, it's quite long. In these cases, just use a temporary variable name, like i for "index". for i in range(0, length): The range command can also ...
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What is the difference between ? and Object in Java generics?

...me String"); All of the above method calls will result in a compile-time error because Java doesn't know what the Value type of the HashMap inside map is. You can still get a value out of the hash map. Although you "don't know the value's type," (because you don't know what type of hash map is i...
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How to check if one of the following items is in a list?

...e substituted the numbers in L2 for strings, and i'm getting the following error: TypeError: 'in <string>' requires string as left operand, not list – roastbeeef Jan 16 '19 at 12:21 ...
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What's a good way to extend Error in JavaScript?

I want to throw some things in my JS code and I want them to be instanceof Error, but I also want to have them be something else. ...