I'm preparing a database creation script in Node.js and Mongoose. How can I check if the database already exists, and if so, drop (delete) it using Mongoose? ...

I've long been under the impression that goto should never be used if possible. While perusing libavcodec (which is written in C) the other day, I noticed multiple uses of it. Is it ever advantageous to use goto in a language that supports loops and functions? If so, why? ...

I have a large data table. There are 10 million records in this table. 12 Answers 12 ...

I am working on an application and one design approach involves extremely heavy use of the instanceof operator. While I know that OO design generally tries to avoid using instanceof , that is a different story and this question is purely related to performance. I was wondering if there is any per...

I have url from the user and I have to reply with the fetched HTML. 10 Answers 10 ...

Awk学习笔记awk是一种编程语言，用于在linux unix下对文本和数据进行处理。数据可以来自标准输入、一个或多个文件，或其它命令的输出。它支持用户自定义函数和动态正则表达式等先进功能，是linux unix下的一个强大编程工具。 ...

I'm looking for a tool that will, in bulk, add a license header to some source files, some of which already have the header. Is there a tool out there that will insert a header, if it is not already present? ...

In Python, what is the best way to compute the difference between two lists? 14 Answers ...

Using the compatibility package to target 2.2 using Fragments. 7 Answers 7 ...

I have a dataframe in pandas which I would like to write to a CSV file. I am doing this using: 7 Answers ...