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What is InputStream & Output Stream? Why and when do we use them?

...whether the stream is a file, a web page, or the screen shouldn't matter. All that matters is that you receive information from the stream (or send information into that stream.) InputStream is used for many things that you read from. OutputStream is used for many things that you write to. Here'...
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How do I add custom field to Python log format string?

...LoggerAdapter so you don't have to pass the extra info with every logging call: import logging extra = {'app_name':'Super App'} logger = logging.getLogger(__name__) syslog = logging.StreamHandler() formatter = logging.Formatter('%(asctime)s %(app_name)s : %(message)s') syslog.setFormatter(formatte...
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How do I preview emails in Rails?

...iables the template expects. This could be done with fixtures, but I typically prefer to just grab some pseudo-random real data. Remember - this is NOT a unit test - this is purely a development aid. It doesn't need to produce the same result every single time - in fact - it's probably better if ...
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Collapse sequences of white space into a single character and trim string

...low, because it creates a new object for every substring and sends method calls to each of them. – Georg Schölly Jun 23 '11 at 18:55 2 ...
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How to reverse a string in Go?

...size of the input in bytes. It does not correspond to its length. - Not all utf8's runes are of the same size. It can be either 1, 2, 4, or 8. - You should use unicode/ut8 package's method RuneCountInString to get the length of the rune. – Anvesh Checka M...
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How to add Google Analytics Tracking ID to GitHub Pages

... I have added them, however Google analytics say the Tracking is not installed. My page as specified in G-Analytics is http://avi-aryan.github.io – Avi Jul 15 '13 at 12:33 1 ...
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How to run functions in parallel?

...find an answer to my question. I am trying to run multiple functions in parallel in Python. 6 Answers ...
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Cannot ping AWS EC2 instance

... Thank you, I like this. I just want to allow the ping, not all. – Chu-Siang Lai Nov 25 '16 at 11:29 ...
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Differences between MySQL and SQL Server [closed]

I'm an ASP.NET developer who has used Microsoft SQL Server for all my database needs (both at work and for personal projects). ...
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How can I install an older version of a package via NuGet?

I want to install an older version of a package ( Newtonsoft.Json ). But NuGet rolls back: 5 Answers ...