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Why do we have map, fmap and liftM?
Why do we have three different functions that do essentially the same thing?
1 Answer
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Python argparse: default value or specified value
I would like to have a optional argument that will default to a value if only the flag is present with no value specified, but store a user-specified value instead of the default if the user specifies a value. Is there already an action available for this?
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How can I conditionally require form inputs with AngularJS?
Suppose we're building an address book application (contrived example) with AngularJS.
5 Answers
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image processing to improve tesseract OCR accuracy
I've been using tesseract to convert documents into text. The quality of the documents ranges wildly, and I'm looking for tips on what sort of image processing might improve the results. I've noticed that text that is highly pixellated - for example that generated by fax machines - is especially di...
Deserialize JSON into C# dynamic object?
Is there a way to deserialize JSON content into a C# 4 dynamic type? It would be nice to skip creating a bunch of classes in order to use the DataContractJsonSerializer .
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Where does this come from: -*- coding: utf-8 -*-
Python recognizes the following as instruction which defines file's encoding:
4 Answers
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Convert Object to JSON string
jQuery.parseJSON('{"name":"John"}') converts string representation to object
but I want the reverse. Object is to be converted to JSON string
I got a link http://www.devcurry.com/2010/03/convert-javascript-object-to-json.html
but it need to have json2.js do jQuery has a native method to do this?
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How to append the output to a file?
How can I do something like command > file in a way that it appends to the file, instead of overwriting?
3 Answers
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SQLite - replace part of a string
Is it possible using SQL in an SQLite table to replace part of a string?
3 Answers
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Run task only if host does not belong to a group
I'd like to able to run an ansible task only if the host of the current playbook does not belong to a certain group. In semi pseudo code:
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