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How do I extract a sub-hash from a hash?
...gt; 4}
extracted_slice = initial_hash.slice!(:a, :c)
initial_hash would now be
{:b => 2, :d =>4}
extracted_slide would now be
{:a => 1, :c =>3}
You can look at slice.rb in ActiveSupport 3.1.3
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Select parent element of known element in Selenium
...her icons and texts -->
<span>Close</span>
</a>
Now that you need to select parent tag 'a' based on <span> text, then use
driver.findElement(By.xpath("//a[.//span[text()='Close']]"));
Explanation: Select the node based on its child node's value
...
What's the best way to retry an AJAX request on failure using jQuery?
... return settings => $oldAjax(settings).always(check)
})($.ajax);
// now we can use the "retries" property if we need to retry on fail
$.ajax({
type : 'GET',
url : 'http://www.whatever123.gov',
timeout : 2000,
retries : 3, // <-------...
Using DNS to redirect to another URL with a path [closed]
...
No, what you ask is not possible. DNS is name resolution system and knows nothing about HTTP.
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How to stop app that node.js express 'npm start'
...(80, () => {
console.log('HTTP server listening on port 80');
});
// Now for the socket.io stuff - NOTE THIS IS A RESTFUL HTTP SERVER
// We are only using socket.io here to respond to the npmStop signal
// To support IPC (Inter Process Communication) AKA RPC (Remote P.C.)
const io = require('...
How to get back to the latest commit after checking out a previous commit?
...
If you know the commit you want to return to is the head of some branch, or is tagged, then you can just
git checkout branchname
You can also use git reflog to see what other commits your HEAD (or any other ref) has pointed to in ...
Android mock location on device?
How can I mock my location on a physical device (Nexus One)? I know you can do this with the emulator in the Emulator Control panel, but this doesn't work for a physical device.
...
How do I discover memory usage of my application in Android?
...hat they actually mean that only results in a vague conclusion.)
Note: we now have much more extensive documentation on Managing Your App's Memory that covers much of the material here and is more up-to-date with the state of Android.
First thing is to probably read the last part of this article w...
Most useful NLog configurations [closed]
...on, perhaps I'm looking through the github examples in the wrong way? Who knows.
– JARRRRG
Oct 1 '14 at 11:42
How to u...
What is the best testing framework to use with Node.js? [closed]
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You say that you prefer Mocha now, but why?
– Jonathan Arkell
Oct 2 '12 at 15:32
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