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Vagrant error : Failed to mount folders in Linux guest
... box and do sudo ln -s /etc/dnf/dnf.conf /etc/yum.conf, as Fedora switched from yum to dnf. With that, things ran to completion (I think!). Thanks @dadaso.
– J.Z.
Mar 18 '16 at 22:37
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Java Date vs Calendar
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Most recent comment on the mailing list is from July and by Stephen, so the project is probably still ticking away
– oxbow_lakes
Sep 10 '09 at 10:11
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Can I escape a double quote in a verbatim string literal?
...ould help clear up any questions you may have: C# literals
Here is a table from the linked content:
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What will happen if I modify a Python script while it's running?
...ther instance in a separate console. After awhile, I got an error returned from the first console about the two lines of code that I changed after starting it! pls help
– double_j
Jan 26 '15 at 19:44
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In Ruby how do I generate a long string of repeated text?
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@Steven From Ruby's perspective, "0" * 999999 is treated as "0".*(999999) where * is a method in the String class. That method accepts numbers as valid arguments to perform string replication. When you reverse the expression, we get ...
Maximum packet size for a TCP connection
...get the maximum packet size by subtracting the size of the hardware header from that, which is 14 for ethernet with no VLAN.
This is only the case if the MTU is at least that large across the network. TCP may use path MTU discovery to reduce your effective MTU.
The question is, why do you care?
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Static class initializer in PHP
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How is it able to call private init from outside the class? Can you explain the details of what you are doing here?
– ToolmakerSteve
Apr 12 '19 at 16:45
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How to toggle a value in Python
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Solution using subtraction
If the values are numerical, then subtraction from the total is a simple and fast way to toggle values:
>>> A = 5
>>> B = 3
>>> total = A + B
>>> x = A
>>> x = total - x # toggle
>>> x
3
>>> x = total - x...
Insert line after first match using sed
...he first line matched. Especially handy if you're adding a line that comes from a variable where you'd otherwise have to escape everything first using ${var//} before, or another sed statement etc.
This solution is a little less messy in scripts (that quoting and \n is not easy to read though), whe...
How to identify CAAnimation within the animationDidStop delegate?
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To make explicit what's implied from above (and what brought me here after a few wasted hours): don't expect to see the original animation object that you allocated passed back to you by
- (void)animationDidStop:(CAAnimation*)animation finished:(BOOL)flag...