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Regex for numbers only
... examples below it is matching a string that contains all numbers plus an equals sign like "1234=4321". I'm sure there's a way to change this behavior, but as I said, I've never really done much with regular expressions.
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Array slices in C#
...0/.Net Core 3.0
Array slicing will be supported, along with the new types Index and Range being added.
Range Struct docs
Index Struct docs
Index i1 = 3; // number 3 from beginning
Index i2 = ^4; // number 4 from end
int[] a = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
Console.WriteLine($"{a[i1]}, {a[i2]...
Short circuit Array.forEach like calling break
...irefox 1.5 also works really well. My example use case will be to find the index in an array of ranges[a,b] where a number is between a lower boundary and upper boundary pair, test and return true when found. for..of would be the next best solution though only for newer browsers.
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How to stage only part of a new file with git?
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Whoa, all that update-index and hash-object business seems overly complicated. How about this instead:
git add -N new_file
git add -i
From git help add:
-N, --intent-to-add
Record only the fact that the path will be added later. An entry...
How to calculate the sentence similarity using word2vec model of gensim with python
...similarity between vectors:
import numpy as np
from scipy import spatial
index2word_set = set(model.wv.index2word)
def avg_feature_vector(sentence, model, num_features, index2word_set):
words = sentence.split()
feature_vec = np.zeros((num_features, ), dtype='float32')
n_words = 0
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Changing names of parameterized tests
...estring is a string, which can have the following special placeholders:
{index} - the index of this set of arguments. The default namestring is {index}.
{0} - the first parameter value from this invocation of the test.
{1} - the second parameter value
and so on
The final name of the test will b...
How do I combine two data frames?
...elieve you can use the append method
bigdata = data1.append(data2, ignore_index=True)
to keep their indexes just dont use the ignore_index keyword ...
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Enforcing the type of the indexed members of a Typescript object?
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number is also allowed as an indexing type
– Ryan Cavanaugh
Nov 12 '12 at 17:15
3
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Declaring array of objects
...ou can write a small utility function:
function getDefaultObjectAt(array, index)
{
return array[index] = array[index] || {};
}
Then use it like this:
var sample = [];
var obj = getDefaultObjectAt(sample, 0); // {} returned and stored at index 0.
Or even:
getDefaultObjectAt(sample, 1)....
What is the difference between named and positional parameters in Dart?
...tHttpUrl with or without the third parameter.
getHttpUrl('example.com', '/index.html', 8080); // port == 8080
getHttpUrl('example.com', '/index.html'); // port == 80
You can specify multiple positional parameters for a function:
getHttpUrl(String server, String path, [int port=80, int numR...