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How to prevent a jQuery Ajax request from caching in Internet Explorer?
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@Nick, is it sure? i didn't test this Cache-Control. Is Jquery Ajax chache is work on all browser?
– user407283
Nov 29 '10 at 13:19
7...
How do I create a custom Error in JavaScript?
...it returns a new Error instance rather than initializing the this object.
Testing with the following code seems to demonstrate that this is in fact what's happening:
function NotImplementedError() {
var returned = Error.apply(this, arguments);
console.log("returned.message = '" + returned.m...
Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...-1]
df = df.iloc[ np.unique( df.index.values, return_index = True )[1] ]
Tests: 10k loops using OP's data
numpy method - 3.03 seconds
df.loc[~df.index.duplicated(keep='first')] - 4.43 seconds
df.groupby(df.index).first() - 21 seconds
reset_index() method - 29 seconds
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What is the difference between “git init” and “git init --bare”?
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To test git commands try: github.com/sergiocabral/App.GitPlayground
– Sergio Cabral
Nov 8 '19 at 7:44
a...
Start an Activity with a parameter
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Having statics will make Your testing very hard.
– John Tribe
Jan 27 '18 at 19:53
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Make Div overlay ENTIRE page (not just viewport)?
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@Arve It gets you close, but it's better to use a time-tested reset sheet instead. Check out meyerweb.com/eric/tools/css/reset for more information - you'll love it, I assure you :)
– Sampson
May 17 '10 at 20:06
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How to rename items in values() in Django?
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Without using any other manager method (tested on v3.0.4):
from django.db.models import F
MyModel.objects.values(renamed_value=F('cryptic_value_name'))
Excerpt from Django docs:
An F() object represents the value of a model field or annotated
column. It m...
How to do an update + join in PostgreSQL?
...ulatedvalue
from t
where id = t.rowid
This approach lets you develop and test your select query and in two steps convert it to the update query.
So in your case the result query will be:
with t as (
select v.id as rowid, s.price_per_vehicle as calculatedvalue
from vehicles_vehicle v
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String replacement in batch file
... That you need to put the code into batch file for it to work. If you just test it in command line, it will return unexpected %"jump over the "word%%%. Just be aware, that code in batch files and in command line may produce different results.
– dadhi
Apr 23 '14...
C++ performance vs. Java/C#
...f C++ because of this intermediate step, however I've been told that the latest compilers ("hot spot") can attain this speed or even exceed it.
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