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JavaScript ternary operator example with functions

...unction() ? imlost() : whathappuh() : lostinsyntax() : thisisprobablybrokennow() ? //I'm lost in my own (awful) example by now. //Not complete... or for average humans to read. if(this != that) //Ternary would be done by now { x = this; } else } x = this + 2; } A really basic rule of thu...
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Summarizing multiple columns with dplyr? [duplicate]

...x. I have a data frame with different variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R. ...
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How to suppress Update Links warning?

...ctedly got another: WARNING #2 So, I suppose my testing environment is now pretty much similar to OP's) So far so good, we finally go to VBA Opening Now I'll try all possible options step by step to make the picture clear. I'll share only relevant lines of code for simplicity (complete sample ...
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What is the 'dynamic' type in C# 4.0 used for?

... to tell the compiler that a variable's type can change or that it is not known until runtime. Think of it as being able to interact with an Object without having to cast it. dynamic cust = GetCustomer(); cust.FirstName = "foo"; // works as expected cust.Process(); // works as expected cust.Missing...
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Split string into array of character strings

... This answer does now work if you're using Java 8. See stackoverflow.com/a/22718904/1587046 – Alexis C. Apr 25 '14 at 14:01 ...
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How to get 30 days prior to current date?

... Get next 30 days from today let now = new Date() console.log('Today: ' + now.toUTCString()) let next30days = new Date(now.setDate(now.getDate() + 30)) console.log('Next 30th day: ' + next30days.toUTCString()) Get last 30 days form today let n...
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Difference between Covariance & Contra-variance

...s T → IE<T>. Notice that this is a "thin arrow". With me so far? Now let's consider a relation. There is an assignment compatibility relationship between pairs of types in the first set. A value of type Tiger can be assigned to a variable of type Animal, so these types are said to be "assi...
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What does “error: option --single-version-externally-managed not recognized” indicate?

...ding PyObjC and astropy ). I've never seen this error before, but it's now also showing up on travis-ci builds for which nothing has changed. ...
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What is a non-capturing group in regular expressions?

...tp://stackoverflow.com/ https://stackoverflow.com/questions/tagged/regex Now, if I apply the regex below over it... (https?|ftp)://([^/\r\n]+)(/[^\r\n]*)? ... I would get the following result: Match "http://stackoverflow.com/" Group 1: "http" Group 2: "stackoverflow.com" Group 3...
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Simulate limited bandwidth from within Chrome?

...as a whole bunch of HTTP inspection tools. Edit: As of June 2014, Chrome now has the ability to do this natively in DevTools - you'll need Chrome 38 though. The option is accessible from the Network tab via a drop down at the end of the toolbar. ...