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How do I check if a string is valid JSON in Python?
In Python, is there a way to check if a string is valid JSON before trying to parse it?
4 Answers
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Insert, on duplicate update in PostgreSQL?
... do, in the manual:
Example 38-2. Exceptions with UPDATE/INSERT
This example uses exception handling to perform either UPDATE or INSERT, as appropriate:
CREATE TABLE db (a INT PRIMARY KEY, b TEXT);
CREATE FUNCTION merge_db(key INT, data TEXT) RETURNS VOID AS
$$
BEGIN
LOOP
-- ...
What specific productivity gains do Vim/Emacs provide over GUI text editors?
This isn't meant as a troll or flamebait or anything like that. I've been using Vim as my console-editor of choice for a couple months now (for editing configuration files while in my terminal), but I don't think I could stand it for my normal, every day work of writing web applications, which I ...
What is the best way to get the count/length/size of an iterator?
Is there a "computationally" quick way to get the count of an iterator?
9 Answers
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Are PHP Variables passed by value or by reference?
... passed by value (so that if the value of the argument within the function is changed, it does not get changed outside of the function). To allow a function to modify its arguments, they must be passed by reference.
To have an argument to a function always passed by reference, prepend an ampers...
Is there an easy way to strike through text in an app widget?
I was wondering if there is an easy way to strike text within an app widget in Android. In a normal activity, it is pretty easy, using textview flags:
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Get the current language in device
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If you want to get the selected language of your device, this might help you:
Locale.getDefault().getDisplayLanguage();
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How to make good reproducible pandas examples
...e watching both the r and pandas tags on SO, the impression that I get is that pandas questions are less likely to contain reproducible data. This is something that the R community has been pretty good about encouraging, and thanks to guides like this , newcomers are able to get some help on ...
What's the best online payment processing solution? [closed]
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You can't really answer this kind of question with a "I like 'insert provide name here'" type answer because like so many things it is a balance and the reasons for choosing a payment processing solution tend to be complex.
Volume / Value
The most imp...
Scroll Element into View with Selenium
Is there any way in either Selenium 1.x or 2.x to scroll the browser window so that a particular element identified by an XPath is in view of the browser? There is a focus method in Selenium, but it does not seem to physically scroll the view in FireFox. Does anyone have any suggestions on how to do...