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MySQL, update multiple tables with one query
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Take the case of two tables, Books and Orders. In case, we increase the number of books in a particular order with Order.ID = 1002 in Orders table then we also need to reduce that the total number of books available in our stock by the same number in Books tab...
JavaScript moving element in the DOM
...ee <div> elements on a page. How can I swap positions of the first and third <div> ? jQuery is fine.
7 Answe...
How to append something to an array?
...to the length property. The interpreter does an amazing job at that itself and it will not make any difference in The Real World whether you optimize it away or not. If your array becomes so huge that optimizing .length would actually help, most probably an array is not the right data structure anym...
Why is Java's Iterator not an Iterable?
... one may obtain an iterator from an object to traverse over its elements - and there's no need to iterate over a single instance, which is what an iterator represents.
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How to use getJSON, sending data with post method?
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The $.getJSON() method does an HTTP GET and not POST. You need to use $.post()
$.post(url, dataToBeSent, function(data, textStatus) {
//data contains the JSON object
//textStatus contains the status: success, error, etc
}, "json");
In that call, dataToBeSen...
How do I look inside a Python object?
...to code in various projects using Python (including Django web development and Panda3D game development).
22 Answers
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How to stop line breaking in vim
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Thanks for the tips you guys. I went with :set nowrap and :set textwidth=0 works great
– Robert Beltran
May 30 '13 at 18:00
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Comparing two files in linux terminal
There are two files called "a.txt" and "b.txt" both have a list of words. Now I want to check which words are extra in "a.txt" and are not in "b.txt" .
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Comparing Java enum members: == or equals()?
I know that Java enums are compiled to classes with private constructors and a bunch of public static members. When comparing two members of a given enum, I've always used .equals() , e.g.
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jsonify a SQLAlchemy result set in Flask [duplicate]
...y.
"""
return [ item.serialize for item in self.many2many]
And now for views I can just do:
return jsonify(json_list=[i.serialize for i in qryresult.all()])
Hope this helps ;)
[Edit 2019]:
In case you have more complex objects or circular references, use a library like marshmallo...