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Ignore with CSS?
...work with self closing tags. This may work for now, but I wouldn't dare to call this solution future-proof.
– nd_macias
Feb 13 '14 at 9:25
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SQL Group By with an Order By
...as the aggregate in the SELECT list, and order by the alias:
SELECT COUNT(id) AS theCount, `Tag` from `images-tags`
GROUP BY `Tag`
ORDER BY theCount DESC
LIMIT 20
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...
How can I detect whether an iframe is loaded?
...s.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id='click'>click me</button>
<iframe style="display:none" id='MainPopupIframe' src='' /></iframe>
jsfiddle DEMO.
Update: Using plain javascript
window.onload=function(){
var ifr=docum...
Flask-SQLAlchemy how to delete all rows in a single table
... Does not work if you use a query like this: Model.query.filter(Model.some_id == some_id, Model.other_id.in_(other_ids).delete()
– swade
Jan 26 '17 at 19:27
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Redis strings vs Redis hashes to represent JSON: efficiency?
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Option 1 is not a good idea if concurrent modification of the JSON payload is expected (a classic problem of non-atomic read-modify-write).
– Samveen
Aug 23 '16 at 13:16
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Why is it common to put CSRF prevention tokens in cookies?
...et the header value.
All forms must have the value added to its HTML dynamically.
Any AJAX POSTs must also include the value.
The page must make an AJAX request first to get the CSRF token, so it will mean an extra round trip each time.
Might as well have simply output the token to the page which wo...
NameError: name 'self' is not defined
...t function define-time, but self is an argument only available at function call time. Thus arguments in the argument list cannot refer each other.
It's a common pattern to default an argument to None and add a test for that in code:
def p(self, b=None):
if b is None:
b = self.a
pri...
XPath: How to select nodes which have no attributes?
...nd this would select all node elements that either don't have an attribute called attribute1 OR which have an attribute1 attribute that is empty.
That is, the following elements would be picked out by either of these xpath expressions
<nodes>
<node attribute1="aaaa"></node>
...
sql query to return differences between two tables
... for xml raw('Data')
)
;with CTE1 as (
select
T.C.value('../@ID', 'bigint') as ID,
T.C.value('local-name(.)', 'nvarchar(128)') as Name,
T.C.value('.', 'nvarchar(max)') as Value
from @Data1.nodes('Data/@*') as T(C)
), CTE2 as (
select
T.C.value('../@I...
REST URI convention - Singular or plural name of resource while creating it
...OSTing to /resources, you are adding to the collection.
However, the individual resources are available at /resource. If you do a GET /resource, you will likely error, as this request doesn't make any sense, whereas /resource/123 makes perfect sense.
Using /resource instead of /resources is simila...