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Python loop counter in a for loop [duplicate]
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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...
T-SQL query to show table definition?
What is a query that will show me the full definition, including indexes and keys for a SQL Server table? I want a pure query - and know that SQL Studio can give this to me, but I am often on "wild" computers that have only the most bare-bones apps and I have no rights to install studio. But SQLCM...
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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Can we write our own iterator in Java?
...Type> it = new Iterator<Type>() {
private int currentIndex = 0;
@Override
public boolean hasNext() {
return currentIndex < currentSize && arrayList[currentIndex] != null;
}
@Override
public...
How do you convert a byte array to a hexadecimal string, and vice versa?
...7.
Some further considerations:
I didn't use a second loop variable to index into c, since measurement shows that calculating it from i is cheaper.
Using exactly i < bytes.Length as upper bound of the loop allows the JITter to eliminate bounds checks on bytes[i], so I chose that variant.
Mak...
How to find all occurrences of an element in a list?
index() will just give the first occurrence of an item in a list. Is there a neat trick which returns all indices in a list for an element?
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Which data type for latitude and longitude?
...map, it is (x, y).
To find closest point you need first to create spatial index:
create index on your_table using gist (geog);
and then request, say, 5 closest to a given point:
select *
from your_table
order by geog <-> 'SRID=4326;POINT(lon lat)'
limit 5;
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Populating a ListView using an ArrayList?
...w OnItemClickListener()
{
// argument position gives the index of item which is clicked
public void onItemClick(AdapterView<?> arg0, View v,int position, long arg3)
{
String selectedmovie=movies.get(position);
Toast.makeText...
Reading/parsing Excel (xls) files with Python
...e
worksheet = workbook.sheet_by_name('Name of the Sheet')
open sheet by index
worksheet = workbook.sheet_by_index(0)
read cell value
worksheet.cell(0, 0).value
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Correct way of using JQuery-Mobile/Phonegap together?
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This worked for me too but if I add <div id="test-index-page" data-role="page"> </div> to the same page before html tag closes the page doesn't load and I get errors. I want to start using both frameworks using a third js file from the point both are loaded. How d...