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Get last record in a queryset
How can I retrieve the last record in a certain queryset?
9 Answers
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Get a substring of a char* [duplicate]
For example, I have this
5 Answers
5
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Mozilla PDF.js：PDF在线预览 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...s官网（含github地址）：http://mozilla.github.io/pdf.js/
清泛网Demo地址：https://www.tsingfun.com/statics/pdf.js/web/viewer.html
前言
英文是github上的原文，找不到中文资料，我根据自己理解翻译的，有些词意思拿不准就直接把单词留在原地了...
Java ArrayList - how can I tell if two lists are equal, order not mattering?
I have two ArrayList s of type Answer (self-made class).
18 Answers
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What is the fastest way to get the value of π?
I'm looking for the fastest way to obtain the value of π, as a personal challenge. More specifically, I'm using ways that don't involve using #define constants like M_PI , or hard-coding the number in.
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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
A co-worker claimed recently in a code review that the [[ ]] construct is to be preferred over [ ] in constructs like
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Checking for empty arrays: count vs empty
This question on ' How to tell if a PHP array is empty ' had me thinking of this question
12 Answers
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How to Parse Command Line Arguments in C++? [duplicate]
What is the best way of parsing command-line arguments in C++ if the program is specified
to be run like this:
10 Answers
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set date in input type date
i will set today date in datepicker input type date in chrome.
11 Answers
11
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Random string generation with upper case letters and digits
I want to generate a string of size N.
31 Answers
31
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