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Infinite scrolling with React JS
...te.recordsPerBody, this.state.total - 1);
var displayStart = Math.max(0, Math.floor(scroll / this.state.recordHeight) - this.state.recordsPerBody * 1.5);
var displayEnd = Math.min(displayStart + 4 * this.state.recordsPerBody, this.state.total - 1);
this.setState({
visibleStart:...
How to convert a number to string and vice versa in C++
...g to numeric
float stof(const string& str, size_t *idx = 0);
double stod(const string& str, size_t *idx = 0);
long double stold(const string& str, size_t *idx = 0);
int stoi(const string& str, size_t *idx = 0, int base = 10);
long ...
How to get city name from latitude and longitude coordinates in Google Maps?
...t; addresses = gcd.getFromLocation(lat, lng, 1);
if (addresses.size() > 0) {
System.out.println(addresses.get(0).getLocality());
}
else {
// do your stuff
}
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What's a quick way to test to see a file exists?
... |
edited May 23 '19 at 0:12
TheNeil
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answered ...
How to migrate back from initial migration in Django 1.7?
...
200
You can do the same with Django 1.7+ also:
python manage.py migrate <app> zero
This cl...
How can I strip the whitespace from Pandas DataFrame headers?
...ethod should do what you want.
In [5]: df
Out[5]:
Year Month Value
0 1 2 3
[1 rows x 3 columns]
In [6]: df.rename(columns=lambda x: x.strip())
Out[6]:
Year Month Value
0 1 2 3
[1 rows x 3 columns]
Note: that this returns a DataFrame object and it's sho...
Rails find record with zero has_many records associated [duplicate]
...
Bah, found it here: https://stackoverflow.com/a/5570221/417872
City.includes(:photos).where(photos: { city_id: nil })
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Returning value that was passed into a method
... |
edited Mar 21 '13 at 10:31
Jakub Konecki
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a...
Add querystring parameters to link_to
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edited May 10 '14 at 17:28
XeNoN
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answered Apr 23 '10...
Never seen before C++ for loop
...
320
The condition of the for loop is in the middle - between the two semicolons ;.
In C++ it is OK ...