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How do I calculate square root in Python?
...ethod can be computed as: sqrt = x**(float(1)/2)
– VM_AI
Sep 28 '18 at 10:41
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Generating Guids in Ruby
I have problem that is really easily solved with Guids.
10 Answers
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Javascript trick for 'paste as plain text` in execCommand
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It will intercept the paste event, cancel the paste, and manually insert the text representation of the clipboard:
http://jsfiddle.net/HBEzc/.
This should be the most reliable:
It catches all kinds of pasting (Ctrl+V, context menu, etc.)
It allows you to get the clipboard data direc...
How can building a heap be O(n) time complexity?
...itten this to describe how a max heap works. This is the type of heap typically used for heap sort or for a priority queue where higher values indicate higher priority. A min heap is also useful; for example, when retrieving items with integer keys in ascending order or strings in alphabetical order...
Automapper - how to map to constructor parameters instead of property setters
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Use ConstructUsing
this will allow you to specify which constructor to use during the mapping. but then all of the other properties will be automatically mapped according to the conventions.
Also note that this is different from ConvertUsing in that con...
How do I find all files containing specific text on Linux?
I'm trying to find a way to scan my entire Linux system for all files containing a specific string of text. Just to clarify, I'm looking for text within the file, not in the file name.
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javac : command not found
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yes, i am sure. just look at the java-1.6.0-openjdk.x86_64 package information (scroll to the "Files" section) and see that there is no javac in that package. and then look at the OpenJDK Development Environment package.
– ax.
Mar 23 '11 at ...
Regex Pattern to Match, Excluding when… / Except between
...awkward solutions. So your question about multiple contexts is a special challenge.
Surprise
Surprisingly, there is at least one efficient solution that is general, easy to implement and a pleasure to maintain. It works with all regex flavors that allow you to inspect capture groups in your code. ...
How to read/write from/to file using Go?
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Let's make a Go 1-compatible list of all the ways to read and write files in Go.
Because file API has changed recently and most other answers don't work with Go 1. They also miss bufio which is important IMHO.
In the following examples I copy a file by reading...
An error occurred while installing pg (0.17.1), and Bundler cannot continue
I just installed Rails 4.0.2 and when creating a new app, in the bundle stage I get:
16 Answers
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