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How do you make a deep copy of an object?
It's a bit difficult to implement a deep object copy function. What steps you take to ensure the original object and the cloned one share no reference?
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Should a retrieval method return 'null' or throw an exception when it can't produce the return value
I am using java language,I have a method that is supposed to return an object if it is found.
36 Answers
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C++11 emplace_back on vector?
Consider the following program:
8 Answers
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Discuz菜单栏下面广告怎么弄？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...局 页头二级导航栏广告：广告 HTML 代码如下:<div id="dzf" class="cl"><style type="text css"...后台“运营”、“站点广告”、“广告列表 - 全局 页头二级导航栏广告”：
广告 HTML 代码如下:
<div id="dzf" class="cl">
<style type="text/css">
#dzf{p...
Single quotes vs. double quotes in C or C++
When should I use single quotes and double quotes in C or C++ programming?
12 Answers
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How to convert index of a pandas dataframe into a column?
This seems rather obvious, but I can't seem to figure out how to convert an index of data frame to a column?
7 Answers
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How can I use a C++ library from node.js?
How can I use a C++ library from node.js?
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Check if something is (not) in a list in Python
I have a list of tuples in Python , and I have a conditional where I want to take the branch ONLY if the tuple is not in the list (if it is in the list, then I don't want to take the if branch)
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REST, HTTP DELETE and parameters
My scenario is that I'm modelling the "Are you sure you want to delete that?" scenario. In some cases, the state of the resource suggests that the requested delete may be invalid. You can probably imagine some scenarios yourself where confirmation of a delete is required
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What does [].forEach.call() do in JavaScript?
I was looking at some snippets of code, and I found multiple elements calling a function over a node list with a forEach applied to an empty array.
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