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A variable modified inside a while loop is not remembered
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@AvinashYadav The problem isn't really related to while loop or for loop; rather the use of subshell i.e., in cmd1 | cmd2, cmd2 is in a subshell. So if a for loop is executed in a subshell, the unexpected/problematic behaviour will be exhibited.
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Multiple github accounts on the same computer?
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All you need to do is configure your SSH setup with multiple SSH keypairs.
This link is easy to follow (Thanks Eric):
http://code.tutsplus.com/tutorials/quick-tip-how-to-work-with-github-and-multiple-accounts--net-22574
Gen...
Create Directory if it doesn't exist with Ruby
... ["foo/bar"]
Edit2: you do not have to use FileUtils, you may do system call (update from @mu is too short comment):
> system 'mkdir', '-p', 'foo/bar' # worse version: system 'mkdir -p "foo/bar"'
=> true
But that seems (at least to me) as worse approach as you are using external 'tool' wh...
Mockito: Inject real objects into private @Autowired fields
...njectMocks
private Demo demo;
/* ... */
}
Mockito will consider all fields having @Mock or @Spy annotation as potential candidates to be injected into the instance annotated with @InjectMocks annotation. In the above case 'RealServiceImpl' instance will get injected into the 'demo'
For m...
Devise form within a different controller
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As Andres says, the form calls helpers which are specified by Devise and so aren't present when you access a Devise form from a non-Devise controller.
To get around this, you need to add the following methods to the helper class of the controller you...
How to dismiss ViewController in Swift?
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_ = self.navigationController?.popViewController(animated: true)
– valexa
Jan 23 '17 at 10:06
add a ...
What is the largest Safe UDP Packet Size on the Internet
...rmation that you may not have anticipated. A 512-byte UDP payload is generally considered to do that, although even that does not leave quite enough space for a maximum size IP header.
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impr...
What is the Scala identifier “implicitly”?
...Implicit Views). In this case, the compiler looks for implicit members, locally defined in the current or enclosing scopes, inherited, or imported, that are either Functions from the type of that the.prefix to a type with selection defined, or equivalent implicit methods.
scala> 1.min(2) // Int ...
Android: checkbox listener
... for kotlin satView.setOnCheckedChangeListener { buttonView, _ -> if (buttonView.isChecked) { // perform action } else { // perform action } }
– Aminul Haque Aome
Nov 1...
convert double to int
...safe function because it accepts just anything.
– Ant_222
Jul 5 '16 at 14:48
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