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How can I find the first occurrence of a sub-string in a python string?
... knowledge: rfind and rindex:
In general, find and index return the smallest index where the passed-in string starts, and rfind and rindex return the largest index where it starts
Most of the string searching algorithms search from left to right, so functions starting with r indicate that the...
How to fire AJAX request Periodically?
...the page after every 5 seconds. But I want to do it using jQuery and AJAX call. Is it possible?
4 Answers
...
The 'Access-Control-Allow-Origin' header contains multiple values
...rties.Settings.Default.Cors, "", ""))
as well as
app.UseCors(CorsOptions.AllowAll);
on the server. This results in two header entries. Just use the latter one and it works.
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How to check whether a pandas DataFrame is empty?
...[8]: len(df1.columns)
Out[8]: 0
In [9]: len(df2.columns)
Out[9]: 2
Critically, while the second dataframe df2 contains no data, it is not completely empty because it returns the amount of empty columns that persist.
Why it matters
Let's add a new column to these dataframes to understand the implic...
How to display an unordered list in two columns?
... displays 3 columns
}
ul{
list-style-type: disc;
}
This should solve all your problems with displaying columns. All the best and thanks @jaider as your response helped to guide me to discover this.
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A Space between Inline-Block List Items [duplicate]
...e font setting. In this case 4px is rendered.
To avoid this you could run all your
lis together in one line, or block
the end tags and begin tags together
like this:
<ul>
<li>
<div>first</div>
</li><li>
<div>firs...
Escape double quotes in parameter
... batch file myscript.bat containing just @echo.%1 or even @echo.%~1, I get all quotes: '"test"'
Perhaps you can try the escape character ^ like this: myscript '^"test^"'?
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RelativeLayout is taking fullscreen for wrap_content
Why does FOOBARZ get layed out all the way at the bottom when no elements are layout_height="fill_parent" in other words, all elements are wrap_content for height?
...
The current SynchronizationContext may not be used as a TaskScheduler
I am using Tasks to run long running server calls in my ViewModel and the results are marshalled back on Dispatcher using TaskScheduler.FromSyncronizationContext() . For example:
...
IndentationError: unindent does not match any outer indentation level
...paces mixed in with your tabs. Try doing a search & replace to replace all tabs with a few spaces.
Try this:
import sys
def Factorial(n): # return factorial
result = 1
for i in range (1,n):
result = result * i
print "factorial is ",result
return result
print Factorial...