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Function in JavaScript that can be called only once

I need to create a function which can be executed only once, in each time after the first it won't be executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this? ...
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What is the python keyword “with” used for? [duplicate]

... In python the with keyword is used when working with unmanaged resources (like file streams). It is similar to the using statement in VB.NET and C#. It allows you to ensure that a resource is "cleaned up" when the code that u...
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How to link Docker services across hosts?

Docker allows servers from multiple containers to connect to each other via links and service discovery . However, from what I can see this service discovery is host-local. I would like to implement a service that uses other services hosted on a different machine. ...
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Example using Hyperlink in WPF

I've seen several suggestions, that you can add hyperlink to WPF application through Hyperlink control. 10 Answers ...
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JSON datetime between Python and JavaScript

I want to send a datetime.datetime object in serialized form from Python using JSON and de-serialize in JavaScript using JSON. What is the best way to do this? ...
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Self-references in object literals / initializers

Is there any way to get something like the following to work in JavaScript? 23 Answers ...
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How to delete a workspace in Perforce (using p4v)?

I'm new to Perforce and have created a few workspaces as exercises for getting familiar with it. Now I would like to delete some of the workspaces. I just want to get rid of the workspaces so that they do not appear on the drop-down in the workspaces view ( do not want to do anything with actual de...
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Take a char input from the Scanner

I am trying to find a way to take a char input from the keyboard. 22 Answers 22 ...
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How to count total number of watches on a page?

Is there a way, in JavaScript, to count the number of angular watches on the entire page? 12 Answers ...
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Find the files that have been changed in last 24 hours

E.g., a MySQL server is running on my Ubuntu machine. Some data has been changed during the last 24 hours. 6 Answers ...