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How to listen for changes to a MongoDB collection?
...goDB as the data store. How can I "listen" for inserts to a MongoDB collection before spawning workers to process the job? Do I need to poll every few seconds to see if there are any changes from last time, or is there a way my script can wait for inserts to occur? This is a PHP project that I am wo...
Scanner vs. BufferedReader
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I know this topic is old, but I have had mixed results among operating systems using BufferedReader when trying to slurp up content from the streams provided by Process (i.e. capturing output of an external command). Once I changed my code to use Scanner instead, a...
What does the “Just” syntax mean in Haskell?
I have scoured the internet for an actual explanation of what this keyword does. Every Haskell tutorial that I have looked at just starts using it randomly and never explains what it does (and I've looked at many).
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柳青：滴滴每天面临向死而生的挑战 永远热泪盈眶 - 资讯 - 清泛网 - 专注C/...
...渗透，震人发聩：
柳青2016年滴滴年会演讲全文，无删节版(创业者共勉！)：
昨天还在跟Will聊说我今天讲什么，他说不用有压力，因为我今天会宣布年终奖和今天的抽奖，我说完了也没人在意你讲什么，讲什么都行。所以我现...
Python xml ElementTree from a string source?
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Same problem as @SamuelLampa mentioned. I is not a ElementTree, I am not able to do getroot() for this
– Siddharth Menon
Aug 21 '13 at 9:30
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How to compare two floating point numbers in Bash?
...hink people get intimidated by the curly braces and the seemingly language mixed syntax (at a glance). And since awk is pretty much guaranteed to be present on the target system as well, just like bc (not sure which one, if any, is ever NOT installed). I love bash scripting but that no floating poin...
jQuery SVG vs. Raphael [closed]
...).
However, just to throw another possible contender into the SVG library mix, Google's SVG Web looks very promising indeed (even though I'm not a big fan of Flash, which it uses to render in non-SVG compliant browsers). Probably one to watch, especially with the upcoming SVG Open conference.
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In a .csproj file, what is for?
...;
While my project was building fine, this left me wondering why I had a mix of Content and None item type elements in my ItemGroup. This MSDN article (for Visual Studio 2010) gave me the guidance I was looking for:
Note that when the resource editor adds an image, it sets Build
Action to No...
How to extract text from a PDF? [closed]
...ront page. The text was split into 3 columns on the paper, but this plugin mixed the sentences altogether making it look jibberish. Ghostscript which is free had exact same output.
– NoWhereToBeSeen
Aug 4 '17 at 12:17
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Media query to detect if device is touchscreen
...hscreen device? If there is no way, do you suggest using a JavaScript solution such as !window.Touch or Modernizr?
10 Ans...