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Checking if a blob exists in Azure Storage
...ry simple question (I hope!) - I just want to find out if a blob (with a name I've defined) exists in a particular container. I'll be downloading it if it does exist, and if it doesn't then I'll do something else.
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Using Enums while parsing JSON with GSON
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From the documentation for Gson:
Gson provides default serialization and deserialization for Enums... If you would prefer to change the default representation, you can do so by registering a type adapter through GsonBuilder.registerTy...
How to get “wc -l” to print just the number of lines without file name?
outputs number of lines and file name.
9 Answers
9
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Shuffle an array with python, randomize array item order with python
...Charlie That would be a good thing to ask in a separate question. (Maybe someone else has already asked it.)
– David Z
Mar 29 '17 at 18:17
13
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How to force R to use a specified factor level as reference in a regression?
...on. Here is an example:
set.seed(123)
x <- rnorm(100)
DF <- data.frame(x = x,
y = 4 + (1.5*x) + rnorm(100, sd = 2),
b = gl(5, 20))
head(DF)
str(DF)
m1 <- lm(y ~ x + b, data = DF)
summary(m1)
Now alter the factor b in DF by use of the relevel() function:...
Defining an array of anonymous objects in CoffeeScript
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you can't:
this is some tricks:
items:[
(name:"value1")
(name:"value2")
]
another
items:[
true && name:"value1"
true && name:"value2"
]
this is the best:
items:[
{name:"value1"}
{name:"value2"}
]
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JUnit: how to avoid “no runnable methods” in test utils classes
... my tests run successfully but test utility classes fail with "No runnable methods" error. The pattern I am using is to include all classes with name *Test* under test folder.
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Add x and y labels to a pandas plot
Suppose I have the following code that plots something very simple using pandas:
7 Answers
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remove_if equivalent for std::map
I was trying to erase a range of elements from map based on particular condition. How do I do it using STL algorithms?
13 A...
Using group by on multiple columns
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Group By X means put all those with the same value for X in the one group.
Group By X, Y means put all those with the same values for both X and Y in the one group.
To illustrate using an example, let's say we have the following table, ...