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How to flip background image using CSS?
... flip it horizontally with CSS...
a:visited {
-moz-transform: scaleX(-1);
-o-transform: scaleX(-1);
-webkit-transform: scaleX(-1);
transform: scaleX(-1);
filter: FlipH;
-ms-filter: "FlipH";
}
jsFiddle.
If you want to flip vertically instead...
a:visited {
-moz-transf...
What is the “__v” field in Mongoose
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312
From here:
The versionKey is a property set on each document when first created
by Mongoo...
What is P99 latency?
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201
It's 99th percentile. It means that 99% of the requests should be faster than given latency. In ...
Drop all duplicate rows across multiple columns in Python Pandas
...t pandas as pd
df = pd.DataFrame({"A":["foo", "foo", "foo", "bar"], "B":[0,1,1,1], "C":["A","A","B","A"]})
df.drop_duplicates(subset=['A', 'C'], keep=False)
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gunicorn autoreload on source change
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241
While this is old question you need to know that ever since version 19.0 gunicorn has had the --...
Should I use a data.frame or a matrix?
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177
Part of the answer is contained already in your question: You use data frames if columns (vari...
Heroku free account limited?
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Heroku provides, for free, a 5MB database
Heroku provides, for free, 1 dyno. A dyno is an instance of your application running and responding to requests. If each instance of your application can serve each request in 100ms, then you get 600 requests/minute with the free account.
Your applica...
Javascript equivalent of Python's zip function
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17 Answers
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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...ransposing a matrix of size 2^n is slower than transposing one of size 2^n+1 . For small values of n , the difference is not major.
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What do the return values of node.js process.memoryUsage() stand for?
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158
In order to answer this question, one has to understand V8’s Memory Scheme first.
A running...