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Cannot find module cv2 when using OpenCV
...Raspberry Pi, using jayrambhia's script found here . It installed version 2.4.5.
17 Answers
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How to add local .jar file dependency to build.gradle file?
...{
dirs 'libs'
}
}
dependencies {
implementation name: 'gson-2.2.4'
}
However, being a standard .jar in an actual maven repository, why don't you try this?
repositories {
mavenCentral()
}
dependencies {
implementation 'com.google.code.gson:gson:2.2.4'
}
...
Count, size, length…too many choices in Ruby?
...ke an element or predicate and count only those items that match.
> [1,2,3].count{|x| x > 2 }
=> 1
In the case where you don't provide a parameter to count it has basically the same effect as calling length. There can be a performance difference though.
We can see from the source code...
How do i put a border on my grid in WPF?
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215
If you just want an outer border, the easiest way is to put it in a Border control:
<Borde...
Superscript in markdown (Github flavored)?
...
2 Answers
2
Active
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How can you debug a CORS request with cURL?
... successful, these headers shouldn't appear, or the HTTP response won't be 200.
You can also specify additional headers, such as User-Agent, by using the -H flag.
share
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improve this answer
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MySQL with Node.js
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427
Check out the node.js module list
node-mysql — A node.js module implementing the MySQL prot...
Difference between JSON.stringify and JSON.parse
...that JSON text in a string, eg:
var my_object = { key_1: "some text", key_2: true, key_3: 5 };
var object_as_string = JSON.stringify(my_object);
// "{"key_1":"some text","key_2":true,"key_3":5}"
typeof(object_as_string);
// "string"
JSON.parse turns a string of JSON text into a JavaScri...
What is the apply function in Scala?
... compose method on f and chaining two different functions together:
val f2 = f.compose((x:Int) => x - 1)
Now if we want to actually execute the function, or as mathematician say "apply a function to its arguments" we would call the apply method on the Function1[Int,Int] object:
f2.apply(2)
...
Which is the preferred way to concatenate a string in Python?
...
12 Answers
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