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What is the most efficient way to concatenate N arrays?
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If you're concatenating more than two arrays, concat() is the way to go for convenience and likely performance.
var a = [1, 2], b = ["x", "y"], c = [true, false];
var d = a.concat(b, c);
console.log(d); // [1, 2, "x", "y", true, false];
For concatenating just two arrays, the fact that push acc...
Entity Framework Refresh context?
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In EF Core you can use Query().Load() so for example context.Entry(order).Collection(o => o.NavigationProperty).Query().Load();
– Rubenisme
Feb 6 at 17:18
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How do you change the size of figures drawn with matplotlib?
... and show() to create a popup window, you need to call figure(num=1,...) before you plot anything - pyplot/pylab creates a figure as soon as you draw something, and the size of the popup appears to be fixed at this point.
– drevicko
Jul 2 '13 at 23:31
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URLEncoder not able to translate space character
...his behaves as expected. The URLEncoder implements the HTML Specifications for how to encode URLs in HTML forms.
From the javadocs:
This class contains static methods for
converting a String to the
application/x-www-form-urlencoded MIME
format.
and from the HTML Specification:
appli...
How do I sort unicode strings alphabetically in Python?
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Does this work the same for Python 2 and Python 3? I used locale.strxfrm from the answer by u0b34a0f6ae and it seems to work and is much more elegant and does not require any additional software.
– sup
Jun 23 '...
Rotate axis text in python matplotlib
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This works for me:
plt.xticks(rotation=90)
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Dynamically access object property using variable
...mething['bar']
The value between the brackets can be any expression. Therefore, if the property name is stored in a variable, you have to use bracket notation:
var something = {
bar: 'foo'
};
var foo = 'bar';
// both x = something[foo] and something[foo] = x work as expected
console.log(some...
MySQL Cannot Add Foreign Key Constraint
So I'm trying to add Foreign Key constraints to my database as a project requirement and it worked the first time or two on different tables, but I have two tables on which I get an error when trying to add the Foreign Key Constraints.
The error message that I get is:
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How do I run a Java program from the command line on Windows?
...eate a batch file that compiles&runs the code, yet if it was compile before, just launch it?
– android developer
Mar 3 '16 at 23:45
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How to do a non-greedy match in grep?
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You're looking for a non-greedy (or lazy) match. To get a non-greedy match in regular expressions you need to use the modifier ? after the quantifier. For example you can change .* to .*?.
By default grep doesn't support non-greedy modifie...