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How to convert list of tuples to multiple lists?
...xs, ys
if __name__ == '__main__':
from timeit import timeit
setup_string='''\
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
from __main__ import t1, t2, t3
'''
print(f'zip:\t\t{timeit('t1(zs)', setup=setup_string, number=1000)}')
print(f'append...
Hyphen, underscore, or camelCase as word delimiter in URIs?
...
any convention for the queryString, for instance ?event_id=1 or ?eventId=1???
– user2727195
Oct 7 '15 at 23:21
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How to include a child object's child object in Entity Framework 5
...rload of the Include() method which takes a lambda expression instead of a string. You can then Select() over children with Linq expressions rather than string paths.
return DatabaseContext.Applications
.Include(a => a.Children.Select(c => c.ChildRelationshipType));
...
RabbitMQ message size and types
...conditions:
The thing you are sending can be converted to and from a bytestring
The consumer knows exactly what it is getting and how to convert it to the original object
Strings are pretty easy, they have a built in method for converting to and from bytes. If you know it is a string then you ...
How to compare variables to undefined, if I don’t know whether they exist? [duplicate]
...a valid variable, do something here.
}
Note that typeof always returns a string, and doesn't generate an error if the variable doesn't exist at all.
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Any way to modify Jasmine spies based on arguments?
...(private configSvc: ConfigService) {
this.configSvc.getAppConfigValue('a_string');
this.configSvc.getAppConfigValue('another_string');
}
In my spec, I provided the ConfigService in the TestBed like so:
{
provide: ConfigService,
useValue: {
getAppConfigValue: (key: any): any {
if...
How do I sort a list of dictionaries by a value of the dictionary?
... is rather hackish, since it relies on converting the values into a single string representation for comparison, but it works as expected for numbers including negative ones (although you will need to format your string appropriately with zero paddings if you are using numbers).
...
Simple way to convert datarow array to datatable
...ework 3.5+
DataTable dt = new DataTable();
DataRow[] dr = dt.Select("Your string");
DataTable dt1 = dr.CopyToDataTable();
But if there is no rows in the array, it can cause the errors such as The source contains no DataRows. Therefore, if you decide to use this method CopyToDataTable(), you shoul...
Chrome: Uncaught SyntaxError: Unexpected end of input
... same error, because I was using JSON.parse(text) and text value was empty string
– A Khudairy
Feb 24 '15 at 16:50
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Why can't overriding methods throw exceptions broader than the overridden method?
... System.out.println(" child ");
}
public static void main(String[] args) {
Parent parent = new Child();
parent.name();// output => child
}
}
The program will compile successfully.
Example 2:
public class Parent {
public void name() throws Runti...