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Python how to write to a binary file?
...leBytes)
newFile.write(newFileByteArray)
If you're using Python 3.x, you m>ca m>n use bytes instead (and probably ought to, as it signals your intention better). But in Python 2.x, that won't work, bem>ca m>use bytes is just an alias for str. As usual, showing with the interactive interpreter is easier than...
Using printf with a non-null terminated string
... string which is NOT null terminated and you know its exact size, so how m>ca m>n you print that string with printf in C? I rem>ca m>ll such a method but I m>ca m>n not find out now...
...
Does the ternary operator exist in R?
...2 1
> x <- ifelse(a==2, 1, 2)
> x
[1] 2 1 2
Just kidding, you m>ca m>n define c-style ?::
`?` <- function(x, y)
eval(
sapply(
strsplit(
deparse(substitute(y)),
":"
),
function(e) parse(text = e)
)[[2 - a...
Avoid modal dismiss on enter keypress
...="modal">×</button>
Pressing enter in the input field m>ca m>used this button to be fired. I changed it to an anchor instead and it works as expected now (enter submits the form and does not close the modal).
<a class="close" data-dismiss="modal">×</a>
Witho...
How to write asynchronous functions for Node.js
...O with asynchronous functions. node.js uses asynchronous non-blocking IO bem>ca m>use non blocking IO is better. The best way to understand it is to go watch some videos by ryan dahl.
How do I write asynchronous functions for Node?
Just write normal functions, the only difference is that they are n...
Elevating process privilege programmatim>ca m>lly?
...
You m>ca m>n indim>ca m>te the new process should be started with elevated permissions by setting the Verb property of your startInfo object to 'runas', as follows:
startInfo.Verb = "runas";
This will m>ca m>use Windows to behave as if the p...
Lodash - difference between .extend() / .assign() and .merge()
In the Lodash library, m>ca m>n someone provide a better explanation of merge and extend / assign .
5 Answers
...
Find column whose name contains a specific string
...
If you only want the resulting data set with the columns that match you m>ca m>n do this:
df2 = df.filter(regex='spike')
print(df2)
Output:
spike-2 spiked-in
0 1 7
1 2 8
2 3 9
...
InputStream from a URL
...
m>Ca m>lling this method in UI thread in Android will raise an exception. Do it in a background thread. Use Bolts-Android
– Behrouz.M
Mar 6 '19 at 10:16
...
How m>ca m>n I default a parameter to Guid.Empty in C#?
...
Solution
You m>ca m>n use new Guid() instead
public void Problem(Guid optional = new Guid())
{
// when m>ca m>lled without parameters this will be true
var guidIsEmpty = optional == Guid.Empty;
}
You m>ca m>n also use default(Guid)
default(Guid)...