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What exactly is Hot Module Replacement in Webpack?
...ompiler (wrap it in if(module.hot)).
Caveats
It's experimental and not tested so well.
Expect some bugs.
Theoretically usable in production, but it may be too early to use it for something serious.
The module IDs need to be tracked between compilations so you need to store them (records).
The op...
In Bash, how to add “Are you sure [Y/n]” to any command or alias?
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Actually it should be [y/N] and not [Y/n] for the current test.
– Simon A. Eugster
Aug 1 '12 at 11:58
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How can I check if my python object is a number? [duplicate]
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Test if your variable is an instance of numbers.Number:
>>> import numbers
>>> import decimal
>>> [isinstance(x, numbers.Number) for x in (0, 0.0, 0j, decimal.Decimal(0))]
[True, True, True, True]
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Comparing date ranges
...' <= end) and ('1983-06-18' >= start)
i.e. check the start of your test range is before the end of the database range, and that the end of your test range is after or on the start of the database range.
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How can I reverse the order of lines in a file?
...ine, the first 2 lines may be conjoined as 1 line. echo -n "abc\ndee" > test; tac test.
– CMCDragonkai
Apr 11 '17 at 12:58
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What can be the reasons of connection refused errors?
...rewalls and that the port is open, use telnet to connect to the ip/port to test connectivity. This removes any potential issues from your application.
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Adding devices to team provisioning profile
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In later versions of Xcode - tested on Xcode 6 - "Automatic Device Provisioning" is on by default. So add your device through the portal and hit refresh - your device is now auto-magically attached to your provisioning profile.
– th...
Xcode Simulator: how to remove older unneeded devices?
...(multiple) simulators
- `xcrun simctl io booted recordVideo — type=mp4 ./test.mp4` to record simulator video
- `xcrun simctl io booted screenshot ./screen.png` to make screenshot of simulator
- `xcrun simctl openurl booted https://google.com` to open URL in simulator
- `xcrun simctl addmedia boote...
AngularJS For Loop with Numbers & Ranges
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I think I tested this on 1.3 or 1.4 and it was fine. I believe they have improved the parser so it doesn't reject every 'constructor' access but only the really dangerous ones (such as [].slice.constructor, which gives access to Functi...
Using cURL with a username and password?
...thing but different syntax
curl http://username:password@api.somesite.com/test/blah?something=123
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