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:not(:empty) CSS selector is not working?
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MongoDB aggregation framework match OR
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$match: { $or: [{ author: 'dave' }, { author: 'john' }] }
Like so, since the $match operator...
How to create index on JSON field in Postgres?
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1 Answer
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Equal sized table cells to fill the entire width of the containing table
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You don't even have to set a specific width for the cells, table-layout: fixed suffices to spr...
How to crop an image using PIL?
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There is a crop() method:
w, h = yourImage.size
yourImage.crop((0, 30, w, h-30)).save(...)
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How does Chrome's “Request Desktop Site” option work?
...illa/5.0 (Linux; Android 4.0.4; Galaxy Nexus Build/IMM76K) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Mobile Safari/535.19
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.45 Safari/535.19
Notice the word "Mobile' in the first one, and also ...
What is the logic behind the “using” keyword in C++?
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1 Answer
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How do I subtract minutes from a date in javascript?
...u can create a Date by calling the constructor with milliseconds since Jan 1, 1970.
The valueOf() a Date is the number of milliseconds since Jan 1, 1970
There are 60,000 milliseconds in a minute :-]
...it isn't so hard.
In the code below, a new Date is created by subtracting the appropriate numbe...
What is RPC framework and Apache Thrift?
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1 Answer
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How to prove that a problem is NP complete?
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To show a problem is NP complete, you need to:
Show it is in NP
In other words, given some inf...