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git revert back to certain commit [duplicate]
... answered Jul 22 '11 at 18:12
AndyAndy
36.2k1212 gold badges6363 silver badges6565 bronze badges
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String.Empty versus “” [duplicate]
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As the duplicate say, its not different in .NET 2 and above.
– JoeBilly
May 28 '10 at 12:27
8
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Undo scaffolding in Rails
Is there any way to 'undo' the effects of a scaffold command in Rails?
24 Answers
24
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How to verify if a file exists in a batch file?
... IF /? help file: The ELSE clause must occur on the same line as the command after the IF. This burned me. hope it helps you.
– funkymushroom
Feb 27 '14 at 17:58
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How to delete last item in list?
...this program that calculates the time taken to answer a specific question, and quits out of the while loop when answer is incorrect, but i want to delete the last calculation, so i can call min() and it not be the wrong time, sorry if this is confusing.
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How can i use iptables on centos 7? [closed]
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It is possible to go back to a more classic iptables setup. First, stop and mask the firewalld service:
systemctl stop firewalld
systemctl mask firewalld
Then, install the iptables-services package:
yum install iptables-services
Enable the service at boot-time:
systemctl enable iptables
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Setting Corner Radius on UIImageView not working
... you pay the mask creation overhead everyframe. If shouldRasterize is true and your layer changes every frame, you pay the mask overhead and the rasterization overhead. Ideal case is a static (not changing very often) layer with shouldRasterize = true.
– jjxtra
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How to display double quotes(") Symbol in a TextView?
...racters (eg double quotes) with a backslash :
"message \"quote string 1\" and \"quote string 2\" end message"
But in views xml (eg layout.xml), you have to use HTML character entities (like ") :
"message "quote string 1" and "quote string 2" end messa...
Encoding an image file with base64
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I'm not sure I understand your question. I assume you are doing something along the lines of:
import base64
with open("yourfile.ext", "rb") as image_file:
encoded_string = base64.b64encode(image_file.read())
You have to open the file first...
How to create a directory in Java?
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result = true;
}
catch(SecurityException se){
//handle it
}
if(result) {
System.out.println("DIR created");
}
}
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