大约有 47,000 项符合查询结果(耗时:0.0530秒) [XML]

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Why is a round-trip conversion via a string not safe for a double?

Recently I have had to serialize a double into text, and then get it back. The value seems to not be equivalent: 3 Answers ...
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Javascript calculate the day of the year (1 - 366)

How do I use javascript to calculate the day of the year, from 1 - 366? For example: 22 Answers ...
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How to find the kth smallest element in the union of two sorted arrays?

This is a homework question. They say it takes O(logN + logM) where N and M are the arrays lengths. 17 Answers ...
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All falsey values in JavaScript

What are the values in JavaScript that are 'falsey' , meaning that they evaluate as false in expressions like if(value) , value ? and !value ? ...
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Modify SVG fill color when being served as Background-Image

Placing the SVG output directly inline with the page code I am able to simply modify fill colors with CSS like so: 16 Answe...
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Reset C int array to zero : the fastest way?

Assuming that we have a T myarray[100] with T = int, unsigned int, long long int or unsigned long long int, what is the fastest way to reset all its content to zero (not only for initialization but to reset the content several times in my program)? Maybe with memset? ...
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Why is XOR the default way to combine hashes?

Say you have two hashes H(A) and H(B) and you want to combine them. I've read that a good way to combine two hashes is to XOR them, e.g. XOR( H(A), H(B) ) . ...
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Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=3

I am getting the Error 44 Answers 44 ...
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Is it possible to change only the alpha of a rgba background colour on hover?

I have a set of <a> tags with differing rgba background colours but the same alpha. Is it possible to write a single css style that will change only the opacity of the rgba attribute? ...
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How to debug Lock wait timeout exceeded on MySQL?

In my production error logs I occasionally see: 11 Answers 11 ...