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Android Reading from an Input stream efficiently
... The problem is - I dont know the size of the thing im reading before i start - so might need some form of array growing as well. Inless you can query an InputStream or URL through http to find out how big the thing im retrieving is to optimise the size of the byte array. I have to be efficient a...
How do I delete rows in a data frame?
... as I only spent a couple of minutes writing and testing it, and have only started using R in the last few weeks. Any comments and improvements on this would be very welcome!
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Revert changes to a file in a commit
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Rebase on the base commit, amend the problem commit, & continue.
1) Start interactive rebase:
git rebase -i aaa111
2) Mark the problem commit for edit in the editor by changing pick to e (for edit):
e aaa222
pick aaa333
3) Revert changes to the bad file:
git show -- badfile.txt | git a...
Redirecting to previous page after authentication in node.js using passport.js
...th redis but I do have some troubles with redirecting the user to where he started from before being prompted to authenticate.
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如何高效的学习掌握新技术 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...接去它的官方网站(http://facebook.github.io/react/) ，把Getting Started里面的文章快速的浏览了一遍，基本上算是有了个大概的了解。而且现在网络上相关文章也比较多，通过搜索，也能找到很多相关的文章和资料。
明确阶段性目标，...
Check for changes to an SQL Server table?
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Have a DTS job (or a job that is started by a windows service) that runs at a given interval. Each time it is run, it gets information about the given table by using the system INFORMATION_SCHEMA tables, and records this data in the data repository. Compare ...
How to do joins in LINQ on multiple fields in single join
... How many records will you have? Don't forget that ordering the results to start with will take a certain amount of time to begin with...
– Jon Skeet
Dec 17 '08 at 13:22
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Difference between “or” and || in Ruby? [duplicate]
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@Yarin Precedence only becomes an issue when you start nesting operations without parentheses. Your example of true && false is in fact basically equivalent to true and false, because there's no precedence issue. Likewise, (x > 1) and (x < 4) is operationally ...
string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)
...e sweat peaches";
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
for (int i = 0; i < 5000000; i++)
{
for (int z = 0; z < 500; z++)
{
var x = string.IsNullOrEmpty(sTestes);// OR string.IsNullOrWhiteSpace
}
}
stopWatch.Stop(...
Convert string to title case with JavaScript
...This css works, but doesn't work as most people expect because if the text starts out as all caps, there is no effect. webmasterworld.com/forum83/7506.htm
– whitneyland
Aug 23 '11 at 17:37
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