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Python loop counter in a for loop [duplicate]
...
Use enumerate() like so:
def draw_menu(options, selected_index):
for counter, option in enumerate(options):
if counter == selected_index:
print " [*] %s" % option
else:
print " [ ] %s" % option
options = ['Option 0', 'Option 1', 'Opt...
What does the KEY keyword mean?
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Quoting from http://dev.mysql.com/doc/refman/5.1/en/create-table.html
{INDEX|KEY}
So KEY is an INDEX ;)
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Usage of protocols as array types and function parameters in swift
...ment)
}
func removeElement(element: ElementType) {
if let index = find(self.protocols, element) {
self.protocols.removeAtIndex(index)
}
}
}
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difference between primary key and unique key
...erent for Primary and Unique Key.
By Default:
PK creates a Clustered index and UK creates a Non Clustered Index.
PK is not null, but UK allows nulls (Note: By Default)
There can only be one and only one PK on a table, but there can be multiple UK's
You can override the default implementation ...
Case insensitive replace
...replace(old, new, text):
idx = 0
while idx < len(text):
index_l = text.lower().find(old.lower(), idx)
if index_l == -1:
return text
text = text[:index_l] + new + text[index_l + len(old):]
idx = index_l + len(new)
return text
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Remove characters after specific character in string, then remove substring?
...his
string input = "http://www.somesite.com/somepage.aspx?whatever";
int index = input.IndexOf("?");
if (index > 0)
input = input.Substring(0, index);
Edit: If everything after the last slash, do something like
string input = "http://www.somesite.com/somepage.aspx?whatever";
int index = ...
Ignore files that have already been committed to a Git repository [duplicate]
...repository that I added a .gitignore file to. How can I refresh the file index so the files I want ignored get ignored?
2...
Convert list of dictionaries to a pandas DataFrame
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How might one use one of the key/value pairs as the index (eg. time)?
– CatsLoveJazz
Jun 28 '16 at 13:37
6
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What's the difference between git reset --mixed, --soft, and --hard?
...nstaged. In order to commit it, you must stage it—that is, add it to the index—using git add. When you make a commit, the changes that are committed are those that have been added to the index.
git reset changes, at minimum, where the current branch (HEAD) is pointing. The difference between --...
Add a new element to an array without specifying the index in Bash
... an assignment statement is assigning a value to a shell variable or array index (see Arrays), the ‘+=’ operator can be used to append to or add to the variable's previous value.
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