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Convert a list to a dictionary in Python
...or this pretty easily:
a = ['hello','world','1','2']
my_dict = {item : a[index+1] for index, item in enumerate(a) if index % 2 == 0}
This is equivalent to the for loop below:
my_dict = {}
for index, item in enumerate(a):
if index % 2 == 0:
my_dict[item] = a[index+1]
...
C# Iterating through an enum? (Indexing a System.Array)
...
Hello, I've seen mention before of this suspicion of "index-mismatching" occurring when doing this; however, I've yet to discover whether this really is a concern or not? Are there any definitive cases whereby this assumption may go awry? Thx!
– Funka
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Returning 'IList' vs 'ICollection' vs 'Collection'
...ide whether or not your results require list semantics such as order based indexing (then use IList<T>) or whether you just need to return an unordered "bag" of results (then use ICollection<T>).
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Iterate through options
...
can also Use parameterized each with index and the element.
$('#selectIntegrationConf').find('option').each(function(index,element){
console.log(index);
console.log(element.value);
console.log(element.text);
});
// this will also work
$('#selectIntegrati...
Laravel Controller Subfolder routing
...
Then your route for this is:
$router->get('/', 'Admin\PostsController@index');
And lastly, don't for get to do either composer or artisan dump
composer dump-autoload
or
php artisan dump
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MyISAM versus InnoDB [closed]
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InnoDB has full text indexes in MySQL 5.6, but so far, they aren't really ready for production use.
– Bill Karwin
Jul 17 '13 at 17:39
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How to define a two-dimensional array?
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You're technically trying to index an uninitialized array. You have to first initialize the outer list with lists before adding items; Python calls this
"list comprehension".
# Creates a list containing 5 lists, each of 8 items, all set to 0
w, h = 8, 5...
I want to exception handle 'list index out of range.'
...ndling the exception is the way to go:
try:
gotdata = dlist[1]
except IndexError:
gotdata = 'null'
Of course you could also check the len() of dlist; but handling the exception is more intuitive.
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How to enable mod_rewrite for Apache 2.2
...T_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
The above .htaccess file (if placed in your DocumentRoot) will redirect all traffic to an index.php file in the DocumentRoot unless the file exists.
So, let's say you have the following dire...
Apply multiple functions to multiple groupby columns
...tom function that returns a Series of all the aggregations. Use the Series index as labels for the new columns:
def f(x):
d = {}
d['a_sum'] = x['a'].sum()
d['a_max'] = x['a'].max()
d['b_mean'] = x['b'].mean()
d['c_d_prodsum'] = (x['c'] * x['d']).sum()
return pd.Series(d, ind...