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Why does base64 encoding require padding if the input length is not divisible by 3?

... a base converter for arbitrary base conversion I created for you. Enjoy! https://convert.zamicol.com/ What are Padding Characters? Padding characters help satisfy length requirements and carry no meaning. Decimal Example of Padding: Given the arbitrary requirement all strings be 8 characters ...
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ruby send method passing multiple parameters

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How to convert a negative number to positive?

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Turn a simple socket into an SSL socket

...os/ssl/ with example code in C++. Now it's available only via the history: https://github.com/openssl/openssl/tree/691064c47fd6a7d11189df00a0d1b94d8051cbe0/demos/ssl You probably will have to find a working version, I originally posted this answer at Nov 6 2015. And I had to edit the source -- not ...
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How can I tell Rails to use RSpec instead of test-unit when creating a new Rails app?

... more about the recommended spec_helper and rails_helper configurations on https://kolosek.com/rails-rspec-setup. share | improve this answer | follow | ...
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What is the function of the DBMDL File in VS database project

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What are all the differences between src and data-src attributes?

...a-xxx that you want to select. MDN documentation on data-xxxx attributes: https://developer.mozilla.org/en-US/docs/DOM/element.dataset Example of src on an image tag where the image loads the JPEG for you and displays it: <img id="myImage" src="http://mydomain.com/foo.jpg"> <script> ...
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How to get an outline view in sublime texteditor?

... A plugin named Outline is available in package control, try it! https://packagecontrol.io/packages/Outline Note: it does not work in multi rows/columns mode. For multiple rows/columns work use this fork: https://github.com/vlad-wonderkidstudio/SublimeOutline ...
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Rails “validates_uniqueness_of” Case Sensitivity

... There is a similar question but the answer is more interesting: https://stackoverflow.com/a/6422771 Basically, using :case_sensitive => false performs a very inefficient database query. share | ...
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mysql command for showing current configuration variables

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