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Find the index of a dict within a list, by matching the dict's value
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tom_index = next((index for (index, d) in enumerate(lst) if d["name"] == "Tom"), None)
# 1
If you need to fetch repeatedly from name, you should index them by name (using a dictionary), this way get operations would be O(1) tim...
There is already an open DataReader associated with this Command which must be closed first
I have this query and I get the error in this function:
18 Answers
18
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Multiple submit buttons on HTML form – designate one button as default [duplicate]
...stion is don't fight this behaviour. You can effectively alter the order using floats. For example:
<p id="buttons">
<input type="submit" name="next" value="Next">
<input type="submit" name="prev" value="Previous">
</p>
with:
#buttons { overflow: hidden; }
#buttons input ...
How to get all options of a select using jQuery?
How can I get all the options of a select through jQuery by passing on its ID?
17 Answers
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REST API Token-based Authentication
I'm developing a REST API that requires authentication. Because the authentication itself occurs via an external webservice over HTTP, I reasoned that we would dispense tokens to avoid repeatedly calling the authentication service. Which brings me neatly to my first question:
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End of support for python 2.7?
...here a known date/timeframe when python 2.7 will not be supported any more in favor of python 3?
9 Answers
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Image resizing client-side with JavaScript before upload to the server
I am looking for a way to resize an image client-side with JavaScript (really resize, not just change width and height).
I know it's possible to do it in Flash but I would like to avoid it if possible.
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Manually map column names with class properties
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This works fine:
var sql = @"select top 1 person_id PersonId, first_name FirstName, last_name LastName from Person";
using (var conn = ConnectionFactory.GetConnection())
{
var person = conn.Query<Person>(sql).ToList();
ret...
How do I send a POST request as a JSON?
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If your server is expecting the POST request to be json, then you would need to add a header, and also serialize the data for your request...
Python 2.x
import json
import urllib2
data = {
'ids': [12, 3, 4, 5, 6]
}
req = urllib2.Request(...
Capture key press (or keydown) event on DIV element
How do you trap the keypress or key down event on a DIV element (using jQuery)?
3 Answers
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