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Bring element to front using CSS
...out how to bring images to front using CSS . I've already tried setting z-index to 1000 and position to relative, but it still fails.
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SQL keys, MUL vs PRI vs UNI
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It means that the field is (part of) a non-unique index. You can issue
show create table <table>;
To see more information about the table structure.
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improv...
Pandas every nth row
...use to get the nth data or drop the nth row is the following:
df1 = df[df.index % 3 != 0] # Excludes every 3rd row starting from 0
df2 = df[df.index % 3 == 0] # Selects every 3rd raw starting from 0
This arithmetic based sampling has the ability to enable even more complex row-selections.
This...
CodeIgniter: How to get Controller, Action, URL information
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Not if you change the routes in routes.php, $this->router returns the class the code runs in, but not the actual router masked with the override. Both answers are quite useful based on what you want to do.
– Tibor Szasz
Ja...
How do HashTables deal with collisions?
...collision. I will explain some of them
Chaining:
In chaining we use array indexes to store the values. If hash code of second value also points to the same index then we replace that index value with an linked list and all values pointing to that index are stored in the linked list and actual array...
How do you validate a URL with a regular expression in Python?
.... Again, stupid. Also valid. This URL normalizes to "///" which is the equivalent.
Something like "bad://///worse/////" is perfectly valid. Dumb but valid.
Bottom Line. Parse it, and look at the pieces to see if they're displeasing in some way.
Do you want the scheme to always be "http"? ...
Right way to reverse pandas.DataFrame?
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data.reindex(index=data.index[::-1])
or simply:
data.iloc[::-1]
will reverse your data frame, if you want to have a for loop which goes from down to up you may do:
for idx in reversed(data.index):
print(idx, data.loc[idx, ...
Get the index of the nth occurrence of a string?
...s - you won't actually be checking any case twice, if you think about it. (IndexOf will return as soon as it finds the match, and you'll keep going from where it left off.)
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A CORS POST request works from plain JavaScript, but why not with jQuery?
...: x-requested-with, x-requested-by
So to put it all together, here is my PHP:
// * wont work in FF w/ Allow-Credentials
//if you dont need Allow-Credentials, * seems to work
header('Access-Control-Allow-Origin: http://www.example.com');
//if you need cookies or login etc
header('Access-Control-Al...
Server.MapPath(“.”), Server.MapPath(“~”), Server.MapPath(@“\”), ...
...D:\WebApps\shop
For example, if you call Server.MapPath() in following request:
http://www.example.com/shop/products/GetProduct.aspx?id=2342
then:
Server.MapPath(".")1 returns D:\WebApps\shop\products
Server.MapPath("..") returns D:\WebApps\shop
Server.MapPath("~") returns D:\WebApps\shop
Ser...