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Iterate a list as pair (current, next) in Python
...ed to __slice__ on the list, which then returns a copy containing only the selected elements. One idiomatic way to copy a list is l_copy = l[:] (which I find ugly and unreadable -- prefer l_copy = list(l))
– dcrosta
Mar 25 '11 at 16:16
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Bash Templating: How to build configuration files from templates with Bash?
...omprehensive solution: These otherwise handy solutions do not allow you to selectively protect variable references from expansion (such as by \ -escaping them).
– mklement0
Mar 25 '15 at 21:48
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Declaring variables inside loops, good practice or bad practice?
...; counter <= 10; counter++) {
// compiler can pull this out
const char testing[] = "testing";
cout << testing;
}
or you can pull the constant out:
const std::string testing = "testing";
for (int counter = 0; counter <= 10; counter++) {
cout << testing;
}
Do most...
Is there a “goto” statement in bash?
...
goto is more than selecting. goto feature means to be able to jump to places acording to some conditions, creating even a loop like flow...
– Sergio Abreu
Jan 2 '17 at 22:29
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Add … if string is too long PHP [duplicate]
...lay the whole field, but on the other, I just want to display the first 50 characters. If the string in the description field is less than 50 characters, then it won't show ... , but if it isn't, I will show ... after the first 50 characters.
...
Why does the expression 0 < 0 == 0 return False in Python?
...uccess')[result_code == 0], before this I had never seen a boolean used to select an item in a list/tuple.
– Andrew Clark
May 20 '11 at 16:24
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How to print a groupby object
...
for key, values in gb.iteritems():
print(df.ix[values], "\n\n")
For selective key grouping: Insert the keys you want inside the key_list_from_gb, in following, using gb.keys(): For Example,
gb = grouped_df.groups
gb.keys()
key_list_from_gb = [key1, key2, key3]
for key, values in gb.items()...
How to generate the JPA entity Metamodel?
...EE Developers") has its own metamodel generator integrated with Eclipse.
Select your project in the Package Explorer
Go to Properties -> JPA dialog
Select source folder from Canonical metamodel (JPA 2.0) group
Click Apply button to generate metamodel classes in the selected source folder
Th...
How do I convert a String object into a Hash object?
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This answer should be selected for avoiding using eval.
– Michael_Zhang
Sep 4 '18 at 21:57
4
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Create subdomains on the fly with .htaccess (PHP)
...o makes me nervious about the security. From 2.4, it should be possible to select a base directory dependent on the hostname (But Dan's method has some issues too) Consider: RewriteRule "^/?(.*)" "http://%{HTTP_HOST}/%{HTTP_HOST}/$1" [L,R,NE]
– symcbean
Ju...