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How do I concatenate strings and variables in PowerShell?

... This isn't technically concatenation. – TravisEz13 Jun 14 '16 at 17:59 9 ...
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Transposing a NumPy array

...of a 1D array is still a 1D array! (If you're used to matlab, it fundamentally doesn't have a concept of a 1D array. Matlab's "1D" arrays are 2D.) If you want to turn your 1D vector into a 2D array and then transpose it, just slice it with np.newaxis (or None, they're the same, newaxis is just mor...
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What is the difference between 'my' and 'our' in Perl?

... On the other hand, our variables are package variables, and thus automatically: global variables definitely not private not necessarily new can be accessed outside the package (or lexical scope) with the qualified namespace, as $package_name::variable. Declaring a variable with our allows you...
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What is your single most favorite command-line trick using Bash? [closed]

We all know how to use <ctrl>-R to reverse search through history, but did you know you can use <ctrl>-S to forward search if you set stty stop "" ? Also, have you ever tried running bind -p to see all of your keyboard shortcuts listed? There are over 455 on Mac OS X by default. ...
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How do I detect a click outside an element?

...instead of the jQuery part. But element.closest() is now also available in all major browsers (the W3C version differs a bit from the jQuery one). Polyfills can be found here: Element.closest() Edit – 2020-05-21 In the case where you want the user to be able to click-and-drag inside the element, t...
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What is the 'new' keyword in JavaScript?

...n's external, accessible, prototype object (every function object automatically has a prototype property). It makes the this variable point to the newly created object. It executes the constructor function, using the newly created object whenever this is mentioned. It returns the newly created objec...
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Multiple file upload in php

... I'm not sure <input type="file"> allows the attribute multiple - what would the expected outcome be? Browser allowing multiple files to be selected? – Sven Oct 3 '12 at 17:41 ...
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What's the easiest way to escape HTML in Python?

... < to < > to > & to & That is enough for all HTML. EDIT: If you have non-ascii chars you also want to escape, for inclusion in another encoded document that uses a different encoding, like Craig says, just use: data.encode('ascii', 'xmlcharrefreplace') Don't for...
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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in

... A static variable shares the value of it among all instances of the class. Example without declaring it static: public class Variable { public int i = 5; public void test() { i = i + 5; Console.WriteLine(i); } } public class Exercise { ...
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How to print SQL statement in codeigniter model

... when i do print_r($query); nothing prints out at all – Technupe May 26 '11 at 16:50 1 ...