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How to limit the maximum value of a numeric field in a Django model?
Django has various numeric fields available for use in models, e.g. DecimalField and PositiveIntegerField . Although the former can be restricted to the number of decimal places stored and the overall number of characters stored, is there any way to restrict it to storing only numbers within a ...
Remove ALL white spaces from text
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You have to tell replace() to repeat the regex:
.replace(/ /g,'')
The g character means to repeat the search through the entire string. Read about this, and other RegEx modifiers available in JavaScript here.
If you want t...
How to fix: “UnicodeDecodeError: 'ascii' codec can't decode byte”
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tl;dr / quick fix
Don't decode/encode willy nilly
Don't assume your strings are UTF-8 encoded
Try to convert strings to Unicode strings as soon as possible in your code
Fix your locale: How to solve UnicodeDecodeError in Python 3.6?...
Rails 3.1: Engine vs. Mountable App
Can someone help me understand the differences between a Rails Engine and a Mountable app? In Rails 3.1, you can create either one with the "rails new plugin ___ " command.
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difference between foldLeft and reduceLeft in Scala
I have learned the basic difference between foldLeft and reduceLeft
7 Answers
7
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Converting Java objects to JSON with Jackson
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To convert your object in JSON with Jackson:
ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
String json = ow.writeValueAsString(object);
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How to make a valid Windows filename from an arbitrary string?
I've got a string like "Foo: Bar" that I want to use as a filename, but on Windows the ":" char isn't allowed in a filename.
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How to query SOLR for empty fields?
I have a large solr index, and I have noticed some fields are not updated correctly (the index is dynamic).
7 Answers
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How to get a property value based on the name
is there a way to get the value of a property of a object based on its name?
7 Answers
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Use numpy array in shared memory for multiprocessing
I would like to use a numpy array in shared memory for use with the multiprocessing module. The difficulty is using it like a numpy array, and not just as a ctypes array.
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