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How to comment lines in rails html.erb files? [duplicate]
Am a newbie to rails ,
please let me know the way to comment out a single line and also to comment out
a block of lines in *.html.erb files.
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Add a prefix string to beginning of each line
...efix/' file
# If you want to create a new file
sed -e 's/^/prefix/' file > file.new
If prefix contains /, you can use any other character not in prefix, or
escape the /, so the sed command becomes
's#^#/opt/workdir#'
# or
's/^/\/opt\/workdir/'
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Extract value of attribute node via XPath
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//Parent[@id='1']/Children/child/@name
Your original child[@name] means an element child which has an attribute name. You want child/@name.
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JPA CascadeType.ALL does not delete orphans
I am having trouble deleting orphan nodes using JPA with the following mapping
11 Answers
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What is private bytes, virtual bytes, working set?
I am trying to use the perfmon windows utility to debug memory leaks in a process.
4 Answers
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What key shortcuts are to comment and uncomment code?
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Keyboard accelerators are configurable. You can find out which keyboard accelerators are bound to a command in Tools -> Options on the Environment -> Keyboard page.
These commands are named Edit.CommentSelection and Edit.UncommentSelection.
(Wit...
Is there a function in python to split a word into a list? [duplicate]
Is there a function in python to split a word into a list of single letters? e.g:
7 Answers
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Command line for looking at specific port
... know I can use netstat to examine all ports but netstat is slow and looking at a specific port probably isn't.
13 Answers
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What is the difference between .yaml and .yml extension? [duplicate]
...y understood the main difference between them. I saw there are someone using .yaml extension, however, Symfony2 use .yml extension.
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How to convert char to int?
What is the proper way to convert a char to int ?
This gives 49 :
11 Answers
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