Remove duplicate values from JS array
Quick and dirty using jQuery:
arrays
Cleanest way to copy a constant size array in c++11
If you use std::array instead of a built-in array (which you should), it becomes very simple. Copying an array is then the same as copying any other object.
I want to declare an empty array in java and then I want do update it but the code is not working
I want to declare an empty array in java and then I want do update it but the code is not working…
java Arrays.sort 2d array
Use Overloaded Arrays#Sort(T[] a, Comparator c) which takes Comparator as the second argument. JAVA-8: Instead of that big comparator, we can use lambda function as following-
load csv into 2D matrix with numpy for plotting
Pure numpy Check out the loadtxt documentation. You can also use python’s csv module: You will have to convert it to your favorite numeric type. I guess you can write the whole thing in one line: result = numpy.array(list(csv.reader(open(“test.csv”, “rb”), delimiter=”,”))).astype(“float”) Added Hint: You could also use pandas.io.parsers.read_csv and get the associated numpy array which can be faster.
Is there a function to copy an array in C/C++?
Since C++11, you can copy arrays directly with std::array: Here is the documentation about std::array
Short circuit Array.forEach like calling break
There’s no built-in ability to break in forEach. To interrupt execution you would have to throw an exception of some sort. eg. Run code snippetExpand snippet JavaScript exceptions aren’t terribly pretty. A traditional for loop might be more appropriate if you really need to break inside it. Use Array#some Instead, use Array#some: Run code snippetExpand snippet This works because some returns true as soon as any of the … Read more
Java – Best way to print 2D array?
I was wondering what the best way of printing a 2D array was. This is some code that I have and I was just wondering if this is good practice or not. Also correct me in any other mistakes I made in this code if you find any. Thanks!
Remove Object from Array using JavaScript
You can use several methods to remove item(s) from an Array: If you want to remove element at position x, use: Or Reply to the comment of @chill182: you can remove one or more elements from an array using Array.filter, or Array.splice combined with Array.findIndex (see MDN), e.g.
Array of arrays (Python/NumPy)
I am using Python/NumPy, and I have two arrays like the following: And I would like to create a new array: and append items to it. So for example if the new items to append are: Then now array3 would be an array with two rows and two columns like the one shown below: I … Read more