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Best way to center a on a page vertically and horizontally? [duplicate]

Best way to center a <div> element on a page both vertically and horizontally? 30 Answers ...
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How to remove leading zeros using C#

... @avrahamcool which can be handled by looking at the length of the string and simply returning "0" if it's empty after the trim. Or using PadLeft(1, '0'). – Cœur Aug 29 '19 at 3:01 ...
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Can I install Python windows packages into virtualenvs?

... @CodyHatch You can as this is not my only answer on SO and there's a chance some of my other answers would be helpful to you as well :) – Piotr Dobrogost Nov 26 '13 at 16:43 ...
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Remove duplicate elements from array in Ruby

... array = array.uniq uniq removes all duplicate elements and retains all unique elements in the array. This is one of many beauties of the Ruby language. share | improve this answ...
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Remove duplicates in the list using linq

... , What will be the change in code if i have a List<my_Custom_Class> and List<string>. My custom class has various items in which one is DCN number and list<string> has only DCN number. So I need to check the List<Custom_Class> contains any dcn from List<string>. For ex...
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libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

libcurl的使用总结最近的项目中由于要在C++代码中调用PHP的URL,所以不得不借助libcurl这个库,由于第一次用,所以很多地方很是纠结,特此写在这里,方便给同...最近的项目中由于要在C++代码中调用PHP的URL,所以不得不借助libcurl...
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What is the difference between a pseudo-class and a pseudo-element in CSS?

... always consists of a "colon" (:) followed by the name of the pseudo-class and optionally by a value between parentheses. Pseudo-classes are allowed in all sequences of simple selectors contained in a selector. Pseudo-classes are allowed anywhere in sequences of simple selectors, after the lead...
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Why malloc+memset is slower than calloc?

...se it can skip memset() entirely. In other cases, calloc() can even cheat and not allocate any memory! However, malloc()+memset() will always do the full amount of work. Understanding this requires a short tour of the memory system. Quick tour of memory There are four main parts here: your prog...
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NewLine in object summary

...E, the above "solution" actually displays a lone BLANK LINE between line 1 and line 2 (that is, a newline after line 1 followed by a blank line then line 2)--this is not the same a new line, as the OP requested. Is that a bug in the VS 2017 IDE--or does everyone who up-voted not see that this answer...
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How to upgrade Git to latest version on macOS?

I just bought a new Mac with OS X Lion and I checked in the Terminal what version of git is installed by default. I got the answer ...