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How to check if all elements of a list matches a condition?
I have a list consisting of like 20000 lists. I use each list's 3rd element as a flag. I want to do some operations on this list as long as at least one element's flag is 0, it's like:
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Reduce, fold or scan (Left/Right)?
When should I use reduceLeft , reduceRight , foldLeft , foldRight , scanLeft or scanRight ?
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postgresql return 0 if returned value is null
I have a query that returns avg(price)
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How to remove space between axis & area-plot in ggplot2?
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How to run cron job every 2 hours
How can I write a Crontab that will run my /home/username/test.sh script every 2 hours?
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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
C语言结构体里的成员数组和指针单看这文章的标题，你可能会觉得好像没什么意思。你先别下这个结论，相信这篇文章会对你理解C语言有帮助。这篇文章产生的背景是在微博上，...单看这文章的标题，你可能会觉得好像没什么...
Find the max of two or more columns with pandas
I have a dataframe with columns A , B . I need to create a column C such that for every record / row:
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what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?
what does -webkit-transform: translate3d(0,0,0); exactly do?
Does it have any performance issues? Should I just apply it to the body or individual elements? It seems to improve scroll events drastically.
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What is IP address '::1'?
I was playing with sockets on local machine with no network connection. See below:
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