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How to merge two arrays in JavaScript and de-duplicate items
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To just merge the arrays (without removing duplicates)
ES5 version use Array.concat:
var array1 = ["Vijendra", "Singh"];
var array2 = ["Singh", "Shakya"];
console.log(array1.concat(array2));
ES6 version use destructuring
const array1 = ["Vijendra","Sing...
Unit testing of private methods [duplicate]
I am in the process of writing some unit tests.
In particular I want to test some private methods.
8 Answers
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CORS - What is the motivation behind introducing preflight requests?
Cross-origin resource sharing is a mechanism that allows a web page to make XMLHttpRequests to another domain (from wikipedia ).
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Focus-follows-mouse (plus auto-raise) on Mac OS X
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You can do it for Terminal.app by issuing the following command at the command line:
defaults write com.apple.Terminal FocusFollowsMouse -bool true
For X11 apps you can do this:
defaults write com.apple.x11 wm_ffm -bool true
In Snow Leopard,...
Deploy a project using Git push
Is it possible to deploy a website using git push ? I have a hunch it has something to do with using git hooks to perform a git reset --hard on the server side, but how would I go about accomplishing this?
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system(“pause”); - Why is it wrong?
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It's frowned upon because it's a platform-specific hack that has nothing to do with actually learning programming, but instead to get around a feature of the IDE/OS - the console window launched from Visual Studio closes when the program has finished execution, and so the new user doesn't get ...
Deleting array elements in JavaScript - delete vs splice
What is the difference between using the delete operator on the array element as opposed to using the Array.splice method ?
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How can I create an object and add attributes to it?
I want to create a dynamic object (inside another object) in Python and then add attributes to it.
16 Answers
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pandas DataFrame: replace nan values with average of columns
...DataFrame filled mostly with real numbers, but there is a few nan values in it as well.
10 Answers
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What is the difference between varchar and nvarchar?
... supports multibyte characters? If that is the case, is there really any point, other than storage concerns, to using varchars ?
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