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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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Why would I want stage before committing in Git?
...t.
Commits
In Git, a commit saves a full snapshot of every file that Git knows about. (Which files does Git know about? We'll see that in the next section.) These snapshots are stored in a special, read-only, Git-only, compressed and de-duplicated form, that in general only Git itself can read. ...
arrow operator (->) in function heading
...ifier ( argument-declarations... ) -> return_type
They are equivalent. Now when they are equivalent, why do you ever want to use the latter? Well, C++11 introduced this cool decltype thing that lets you describe type of an expression. So you might want to derive the return type from the argument...
Split string into array of character strings
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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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Private setters in Json.Net
I know there's an attribute to handle private setters but I kind of want this behavior as a default, is there a way to accomplish this? Except tweaking the source. Would be great if there was a setting for this.
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git stash changes apply to new branch?
I was working on master branch, made some changes and then stashed them. Now, my master is at HEAD.
3 Answers
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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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What is JSON and why would I use it?
...ipt object you must first parse it, var x = JSON.parse('{"x":"y"}');, x is now an object but this is not JSON anymore.
See Javascript object Vs JSON
When working with JSON and JavaScript, you may be tempted to use the eval function to evaluate the result returned in the callback, but this is not...
What is the motivation for bringing Symbols to ES6?
As you may know they are planning to include new Symbol primitive type in ECMAScript 6 (not to mention some other crazy stuff). I always thought that the :symbol notion in Ruby is needless; we could easily use plain strings instead, like we do in JavaScript. And now they decide to complicate thi...
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.
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