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Facebook database design?
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It said that Facebook has around 1'000'000'000 users. If the average user has 100 friends, that means the table would contain 100'000'000'000 rows. MySQL partitioning?
– veidelis
Jun 4 '14 at 7:30
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Checking Bash exit status of several commands efficiently
...been set to a command.
function mytest {
"$@"
local status=$?
if (( status != 0 )); then
echo "error with $1" >&2
fi
return $status
}
mytest "$command1"
mytest "$command2"
share
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renderpartial with null model gets passed the wrong type
...uldn't they have handled that by overloading. @Html.Render("donkeys") is different than @Html.Render("donkeys", couldbenull)
– Phil Strong
Mar 25 '11 at 17:52
19
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Excel VBA - exit for loop
...p when a condition inside is met. How could I exit my for loop when the if condition has been met? I think some kind of exit at the end of my if statement, but don't know how that would work.
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How to determine if object is in array [duplicate]
I need to determine if an object already exists in an array in javascript.
11 Answers
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How to list branches that contain a given commit?
...ranch --contains <commit>
Only list branches which contain the specified commit (HEAD if not specified). Implies --list.
git branch -r --contains <commit>
Lists remote tracking branches as well (as mentioned in user3941992's answer below) that is "local branches that have a direct ...
Function for Factorial in Python
...l (available in Python 2.6 and above):
import math
math.factorial(1000)
If you want/have to write it yourself, you can use an iterative approach:
def factorial(n):
fact = 1
for num in range(2, n + 1):
fact *= num
return fact
or a recursive approach:
def factorial(n):
i...
Check if EditText is empty. [closed]
I have 5 EditTexts in android for users to input. I would like to know if I could have a method for checking all the 5 EditTexts if they are null. Is there any way to do this??
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Using Custom Domains With IIS Express
...plication root URL: http://dev.example.com
Click Create Virtual Directory (if you get an error here you may need to disable IIS 5/6/7/8, change IIS's Default Site to anything but port :80, make sure Skype isn't using port 80, etc.)
Optionally: Set the Start URL to http://dev.example.com
Open %USE...
How to drop rows of Pandas DataFrame whose value in a certain column is NaN
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@wes-mckinney could please let me know if dropna () is a better choice over pandas.notnull in this case ? If so, then why ?
– stormfield
Sep 7 '17 at 11:53
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